#book-recommendations

1 messages · Page 215 of 1

mossy flume
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I mean my teacher's notes are very nice

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I'm not missing a textbook at all

drifting elm
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the books are there for anyone who wants to know the answer

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if you don't want to know then don't read the book

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I think I learn more reading professional proofs without errors

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that way I know how it should be done

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I still learn a lot

mossy flume
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Yea but like exercises and HW are still valuable

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And imo more valuable than just reading along

cobalt arch
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Any books on the laws of algebra of sets?

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Do I need Boolean algebra for proving such laws?

drifting elm
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@cobalt arch are you looking for a book on set theory?

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or group theory

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or number theory

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or abstract algebra

cobalt arch
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Hm

drifting elm
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number theory is the creation of sets that satisfy some algebra

cobalt arch
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For example I need a book that covers the algebra of sets like the idempotent law.

drifting elm
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but algebra of sets is set theory

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group theory is advanced set theory

cobalt arch
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Do I need any abstract algebra for basic set algebra? For example the idempotent law is a magma equipped with multiplication.

drifting elm
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and abstract algebra covers group theory but also there is more stuff in abstract algebra

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no you do set theory first

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this is the basics

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set theory before number theory

cobalt arch
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Yeah but the basics are built on top of these more abstract objectssully

drifting elm
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set theory is easy if you already know boolean algebra

cobalt arch
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But not the other way around?

drifting elm
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learning set theory without boolean algebra is harder

cobalt arch
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Okay

drifting elm
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you are learning two things at the same time that makes it hard

cobalt arch
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Is that Boolean algebra essentially?

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Group theory?

drifting elm
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group theory is a more advanced area of discrete math

cobalt arch
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Because a magma is a groupoid but my knowledge halts there.

drifting elm
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boolean is easy

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that is all abstract algebra you know already

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but also group theory

cobalt arch
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Hmsully

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Okay I see

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So what do I need haha?

drifting elm
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I learned group theory first before magmas monoids groupoids

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before rings and fields it was just groups

cobalt arch
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Aren't fields more basic?

drifting elm
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groups are the most basic

cobalt arch
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Hm I see do they have only one operation?

drifting elm
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but you get that in an abstract algebra book anyway

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depends how you look at it.

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in abstract algebra you can have many operations on a group

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you can have sets of operations or groups of operations

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it can get crazy

cobalt arch
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In what aspects are groups the most basic structures?

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Actually let's not start this convo

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I know it can get pretty deep

drifting elm
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you learn addition and subtraction in an advanced math class

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but like as if you are a lawyer proving 2+2=4

cobalt arch
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Haha sounds silly but it isn't sully

drifting elm
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natural numbers are a group

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  • is an operation on a group
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prove that the natural numbers are closed under addition

daring reef
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2 + 2 = 4 is a definition though

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given by the definition of +

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on N or Z

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so u cant really prove it :c

drifting elm
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right

daring reef
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so lawyer is screwed

drifting elm
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you can prove that 4 is a natural number though

quick hornet
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well, it's a natural number by definition

drifting elm
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an alternate proof for why 4 is a natural number is 2+2=4

quick hornet
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you can prove it's distinct from 1, 2, and 3 though

drifting elm
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true

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just don't say 2+2=4 on twitter

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people are getting banned for hate speech

cobalt arch
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Okay too much info I need a starting point.

drifting elm
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google that

cobalt arch
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Hahaha

drifting elm
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true story

daring reef
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w0t

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banned for saying 2+2=4?

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@cobalt arch probably just start with a discrete math book?

drifting elm
daring reef
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should go over basic of sets, functions, logic, etc.

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and proofs

drifting elm
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afk

quick hornet
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the post millennial

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ew

cobalt arch
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So a discrete math textbook like rosen's covers Boolean algebra? I need to learn what a magma is angerysad

quick hornet
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can we not post alt right recruitment rags

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yes people on twitter say dumb things all the time in the name of "wokeness"

daring reef
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whats magma :0

quick hornet
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i still wont trust claims from TPM that people are being "banned" because of it

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anyway, back to the topic at hand

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i would be very surprised if a discrete mathematics textbook does not cover boolean algebra

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but they may not use that term

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they may use terms like "propositional logic" or similar

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those who call it "boolean algebra" tend to be targeted at CS students and will use the notion + for OR and * for AND

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those who call it "___ logic" tend to be targeted at math students and will use the notation ∨ for OR and ∧ for AND

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it doesnt really make a difference

static crest
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imagine not using + for XOR, the more logical choice

quick hornet
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$\oplus$ for XOR is more common

hasty eagleBOT
quick hornet
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even if it makes less sense when regarding it as a magma

static crest
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I meant for cs, I know they use + for OR (because they did in my courses)

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I was not a fan

daring reef
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real CS students use ^ for xor KEK

static crest
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no, that's programmers

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not cs

daring reef
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fine, but programming is applied CS

static crest
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ok, but you dont go to uni for cs to learn how to code, they're teaching the theory

gray gazelle
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Programming is not CS

daring reef
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right but depending on how programming-heavy the CS class you're taking is you might use ^ for xor instead of circle +

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although i guess xor is a pretty theoretical thing and u normally arent writing it in code

quick hornet
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wait, people dont use xors in code

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??

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i use them all the time in conditionals

teal pendant
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i used it out of spite yesterday

quick hornet
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anyway i agree that + for XOR "makes the most sense", at least from an algebraic perspective

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but CS students/programmers never really look at it from an algebraic perspective

daring reef
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i guess != is just an xor

quick hornet
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so whatever

calm crane
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you use xor when doing bit manipulation stuff

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which can either be very common or very rare

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depending on what you do

daring reef
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yeah

quick hornet
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meh, i guess if varA and varB are true-false booleans, then varA ^ varB and varA != varB are the same thing

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i prefer the former but maybe thats just my math sensibilities

static crest
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I prefer the latter

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because it's more clear

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to others

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and compilers do all the magic anyways

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as long as you're not coding in infinite for loops, compilers will optimize it well enough

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all the small details can be ignored

quick hornet
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imagine not using infinite for loops

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what a scrub

daring reef
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!= is slightly different in that it treats any number not 0 as 1

flint forge
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Imagine not using infinite loop spaces

daring reef
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which is more useful if you arent manipulating bits

quick hornet
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for(i=1; i==0; i++) {

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just loop until you overflow

static crest
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you can just leave the the last empty

molten wave
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for(;;)

static crest
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yes

quick hornet
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listen i havent wrote c-style code in literally ever

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i think i also forgot to declare i an int

static crest
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for (;;)

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is chad code

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for (;;) > while(true)

quick hornet
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but for(;;) doesnt loop until overflow does it?

daring reef
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;;

quick hornet
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it loops endlessly

static crest
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yes

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that is why it is chad

quick hornet
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lame

daring reef
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while loops can lead to overflow?

static crest
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no, but for (int i = 1; ; i++)

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can

quick hornet
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personally i determine how large my ints are

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by looping until they overflow

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this is the most efficient method trust me

static crest
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I find my floating point epsilon by running ODE simulations on various step sizes

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plotting the errors

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and finding where the errors start increasing due to floating point errors

molten wave
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you can just maximize |1 - sin^2 x - cos^2 x|

calm crane
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no overflowing

static crest
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oh ya

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you need the condition

calm crane
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overflowing would be like for(i=1;i;++i)

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compiler will prob optimize it away lol

quick hornet
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thats what i said smh

calm crane
molten wave
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warning: iteration 2147483646 invokes undefined behavior [-Waggressive-loop-optimizations]
calm crane
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heh

molten wave
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if you change to unsigned it optimizes out

calm crane
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the true chad is to have a loop to constantly push into the stack

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until you hit the heap

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then continue as usual

molten wave
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you will probably hit some library's shared memory mapping first

static crest
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true chads will use size_t

calm crane
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true

static crest
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not int or unisigned int

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in loop variables

calm crane
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ah right those are r-x

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will get segfault

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sad

molten wave
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nope

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that's not the reason

calm crane
molten wave
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the stack has a guard page on the bottom end of it

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when you hit it, the kernel expands your stack

calm crane
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oh does it?

molten wave
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until it can't

calm crane
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ahh

molten wave
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then it segfaults

calm crane
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the only dumb stack stuff i do is changing rbp and rsp directly lol

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change those to point to heap and have fun stuff happenKEK

molten wave
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have you ever called 32-bit code from 64-bit and vice versa

calm crane
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oh god yes

static crest
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size_t is just so iterator size is never larger than the maximum array index possible in the system

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it's more generic

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across systems

daring reef
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size_t D:

calm crane
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just use al eax rax xmm ymm zmm

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also

molten wave
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people trying to come up with CPU architectures suitable for efficient functional programming: noooo you can't do that you have to run on stock hardware
javascript:

calm crane
static crest
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I think it's less that you can't do that, it's just that new architectures really have no ecosystem to work in

dense wren
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whats a good math textbook that is gamer friendly

fast portal
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Written by Nicolas Bourbaki Junior

dense wren
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love it, thank you

ripe granite
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why did I not know about this before

fast portal
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You were simply not based enough

ripe granite
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nvm it's not very good, someone learning algebra for the first time wouldnt understand what's going on

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it would be funny if there was a book written in a similar style that you could actually learn algebra from

storm sleet
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What kind of background would someone need to get into Homotopy Type Theory?

ripe granite
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a traumatic experience in your past

storm sleet
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Does taking an intro to CS course with 5 years of programming experience count?

sage python
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Quality exchange

maiden gust
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can anyone tell me some good probability and set/number theory books

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I want to qualify for the amc

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aime*

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10a

marble solar
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254A analytic prime number theory

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Terry Tao is really good

sterile pelican
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in grad school do I need to get books like Papa Rudin or Royden?

sage python
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You don't need to buy them necessarily

sterile pelican
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I have papa rudin already but are they prerequisites to take in grad school?

sage python
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It's probably good to learn that material while in grad school

gray gazelle
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or better, before grad school

sage python
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Yeah optimal would be before, I guess I assume this guy is in his 4th year lol

sterile pelican
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I haven't applied to grad school yet I am still at the workforce :^)

gray gazelle
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nice, me too

fast portal
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inb4 you haven't even gone to ug

sterile pelican
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I graduated from ug for quite some time

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but as an applied science major :^)

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so I am looking at doing some pure maths, currently at Spivak Calculus, and all

drifting elm
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$$\oplus;\otimes$$

gray gazelle
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\opus thonk

hasty eagleBOT
drifting elm
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in programming we have && & | || but they are not the same

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I see $\oplus$ for operations in abstract algebra but I see $\otimes$ in CS books

hasty eagleBOT
fast portal
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galois...

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there is a channel for bot practice

drifting elm
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sorry

storm sleet
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I see oplus mostly in linear algebra and otimes for tensor products

valid moth
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@maiden gust try the aops books

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do past AMC practice tests

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all the past questions are on aops too

subtle niche
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Can you guys recommend a good textbook for topology? Undergrad level/easy if that's a thing...

gray gazelle
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munkres

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a bit of a dry read, but good

subtle niche
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Thanks you much.

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Does it have any severe pre-reqs I should know about?

gray gazelle
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it might help to be vaguely familiar with like, basic topology in R^n or metric space stuff

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just so it doesn't seem like the topics are coming out of nowhere

quick hornet
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yeah ideally you go into topology knowing the topology used in basic analysis of R^n

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it isnt necessary

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but it helps motivate a lot of stuff

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and makes it so you can spend less time thinking about it when it comes up in examples

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since you already know how they work

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in terms of strictly necessary prerequisites, just proofs really

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and mathematical maturity naturally

gray gazelle
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and particularly, probably only ch2-4, and bits of 5-8 are useful

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(well, probably other parts are useful as well, but those parts are not what munkres is known for)

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i guess the other "pre-req" is, what is even the motivation for point set topology? i do not totally know this either, i guess to avoid annoying arguments about epsilons and deltas. but assuming this is the true reason, this is probably a good think to keep in mind (how does my topological argument simplify all the epsilon delta bullshit that i would have to keep track of otherwise with metrics? assuming the spaces i'm working with are metrizable in the first place)

quick hornet
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well epsilonics dont even necessarily make sense for some constructions

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eg topological continuity

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yet continuity in abstract topological spaces still keeps its "important" properties, e.g. continuous image of compact set is compact

karmic thorn
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I'm looking for comprehensive, introductory textbooks which cover ordinary and partial differential equations. Any suggestions?

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Yeah, I'm looking for proof-based ODE/PDEs.

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Oh, okay, will check them out. Thanks!

gray gazelle
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Differential Equations with Applications and Historical Notes, GF Simmons

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@karmic thorn for really good ODEs textbook I recommend ODEs Basics and Beyond by Schaeffer/Cain, only prerequisites are basic real analysis and linear algebra. It has a lot of problems as well.

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(If you don't remember linear algebra/real analysis there are also appendices that cover those)

karmic thorn
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Will check them out, thanks! Glazing across MO and MSE makes a strong case for Arnold's texts, but I'll check out all of these.

hasty turret
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Because you are an engineer

gray gazelle
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Engineer? lol just do Erwin Kreyszig's book

karmic thorn
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Simmons seems to fit in my budget, might be the one I settle for.

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Oh

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Which one do you suggest, then?

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I already have a copy of Tenenbaum but it's kinda meh.

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His Advanced Engineering Math book?

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Or is there one on DEs?

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Damn.

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I have copies of Riley, Hobson and Bence as well as Boas opencry Can they suffice?

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RHB is thicc

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Oh, I see.

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I find Boas to be very clearly written, but maybe not as rigorous or comprehensive.

worldly basalt
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2 months No

2 sems yes

karmic thorn
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Aah.

worldly basalt
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Ohh I'm leading that life too

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This is my syllabus for this sem

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Haven't even touched probability and statistics and exam is at the end the year

gray gazelle
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higher calculus hmmm

static crest
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no

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higher calculas

remote ginkgo
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WOW i was LITERALLY just about to come in here and ask about diff eqs books

karmic thorn
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Lucky day.

hasty turret
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You are lucky on this holy day

molten wave
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calculas

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baye's theorem

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D'alembart

gray gazelle
worldly basalt
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People deducing from spelling errors that I'm an Indian

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I don't know if that's a good thing or bad

remote ginkgo
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i am lucky on this wholly day

hasty turret
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You are whole on this lucky day

remote ginkgo
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i am hole

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on this lucky day

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pls stop dig

smoky surge
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Hey if I was curious about graph theory where should I start

karmic thorn
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A Walk Through Combinatorics by Miklos Bona is very well written imo. You could check it out.

smoky surge
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Thanks!

quartz pawn
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@worldly basalt is that for a systems and signals class?

worldly basalt
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We are required to take this in 3rd sem

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That's engg math 3
Have already done 1 and 2 in previous sems

hollow current
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well

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kreyszig is not bad

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but meh

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but my ODE course uses Kreyszig as main book

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no

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i am mathematician

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ok economist

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by smell

kind furnace
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Damn Bro how did you finish Diestal??

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By far the hardest book I ever read

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Its so dense

quick hornet
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huh, i've worked out of diestel and i didnt find it that hard

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he wasnt very explicit with his proofs mind

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but i never found the things he skipped particularly hard to show

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im curious what math books youre comparing it to if it's the "hardest"

kind furnace
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well mostly math competition book but also rudin and the like

quick hornet
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huh, im surprised you considered diestel harder than rudin

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different strokes i guess

kind furnace
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some serious titu books as well. The problems felt quite hard in deistal

gray gazelle
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There is nothing harder to understand than my lecture notes

drifting elm
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someone tell me what rudin book everyone is talking about. there are 5 books

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there are two more books

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labeled I and II

gray gazelle
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no there are not

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I think he's confusing tao with rudin

drifting elm
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maybe I am

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my mistake

stark creek
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rudin is more difficult than tao right

wooden sparrow
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Intro to analysis?

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Why go with difficult books during intro though? Do you learn more stuff from it?

dapper root
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My thoughts: if you want to jump into Rudin just do it. If after two weeks or so you’re just still “holy shit this sucks wtf is going on” try an easier book and come back to it later if you feel like it

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If the potential worry of purchasing two books is a deterrent to this, there are ways around this which I don’t think we’re supposed to talk about. But I suggest you be creative

static crest
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we aren't supposed to talk about it?

gray gazelle
dapper root
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We are trying to move away from it I tihnkn

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We may try to enter some discord program

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which would require us to end talk of 🏴‍☠️

cobalt arch
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Anyone that has read both of jech's books on axiomatic set theory?

static crest
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ah I see

gray gazelle
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When we say books do we mean actual literature or textbooks

fluid bay
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what's the difference?'

slender sphinx
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Books as in math books, textbooks mostly

fossil island
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what do you mean, they're both made up

hearty steppe
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anyone have any insightful books on becoming a polymath

gray gazelle
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I guess diestel looked sort of dry to me

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I think I did the first chapter then I was like meh

fossil island
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is there a way we can set up speedruns for textbooks and completing problems? like I want to know the %any time of Calculus on Manifolds

gray gazelle
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calculus on manifolds
one day hmmm

quick hornet
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wouldnt a textbook any% just be completing the last problem

fossil island
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hmmmmm, maybe take out completing problems

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just reading it

quick hornet
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in that case an any% would be like

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skipping all the exposition and proofs

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and just reading definitions and theorems

fossil island
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*understanding it

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that can be another category

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crap, this is not turning out to be a good idea

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yeah that's true. i just want to know how long would it take to get through spivak's calculus on manifold (reasonably understanding it)

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ok i think i need to burn calculus on manifolds, he literally puts indexing for R_n vectors at the TOP

gray gazelle
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oh no.....

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should we tell him?

fossil island
gray gazelle
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okay there you told him

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spivak's book doesn't actually use einstein notation to its full extent opencry

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so the later parts on differential forms are filled with big sums

fossil island
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nobody tell algebraic geometers

gray gazelle
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algebraic "geometers"

fossil island
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i mean commutative algebraists

static crest
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the two ~ indicate this is an approximation by discretizing in two ways

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i is the index of discretization in time

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k is the index of discretization in space

fossil island
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if they tried they could squeeze another index inside the "u"

kind furnace
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honestly rudin isnt that hard

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its just rudin's crappy writing style

unique tree
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Introductory book treating on model theory?

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If are there prereq please cite them

obsidian valley
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How introductory catThink

unique tree
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Introductory like I don't even name what a model is

obsidian valley
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Oh...

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Enderton?

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I guess

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or Ebbinghaus

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I like Enderton but someone here really likes Ebbinghaus

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Just their "mathematical logic" books, you start dealing with models proper in Ch.2 of enderton

unique tree
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I can see

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Is there anyone else like a good reference book

obsidian valley
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Uh

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Apparently the standard text for proper model theory is Hodges

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It scares me.

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I mean, have you done much mathematical logic?

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You can't say Hodges isn't scary sully

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Oh

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Hence it is standard

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What's the standard one

unique tree
obsidian valley
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idk I think it's probably best to start with a textbook on logic broadly before focusing on model theory

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¯_(ツ)_/¯

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Ultra knows better than me for sure though

valid moth
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well first you start with jacobson

obsidian valley
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yeah learn algebra KEK

hearty steppe
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He has a book for that

obsidian valley
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That's the real move

unique tree
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You mean mathematical logic right

hearty steppe
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I thought Jacobson has LA and Abstract Alg books

obsidian valley
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The MT textbooks I've skimmed (3 of them) all use a lot of examples from algebra

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so if you don't know algebra it'll be monkaS

hearty steppe
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MT?

obsidian valley
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model therory

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Ultra tell us

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Give wisdom

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Whats the standard intro text

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is there evne one

unique tree
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What is CK

obsidian valley
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Looks like Ch.1 of CK is the extent of model theory that Enderton covers

unique tree
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Oh ayea

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I'm just dumb

obsidian valley
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Why do you want to do model theory

unique tree
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That's because I want to learn some areas on philosophy wich requires logic and other category and model theory. So I am doing math homework before to get started on the real point

obsidian valley
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A philosopher monkaS

daring reef
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there are fields of philosophy that require knowledge of high level math? :0

unique tree
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There are some areas like philosophy of language who prereq high level modal logic and on philosophy of space-time wich use this a lot in some ways

obsidian valley
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oh yeah makes sense

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the modal logician at my school also teaches the philosophy of language course

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I'll probably take it hmmm

hasty turret
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Thoughts on Chomsky?

unique tree
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It's like this what I mean

daring reef
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wait is philosophy of language just linguistics

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or is it different

obsidian valley
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Another south american model theorist

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what the hell is going on

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Why are you all from Brazil

unique tree
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KEK

obsidian valley
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Every model theorist on twitter is south american I swear to god

daring reef
#

chomsky grammars feel kinda mathy

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but apparently he didnt study math at all

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Back in 1985 the American graph theorist Frank Harary gave a seminar that he began with an anecdote about Chomsky. Chomsky and he were out for a walk when Chomsky said that he thought that it was time that someone should develop a mathematical theory for studying connections, with objects being vertices and relations between them represented as edges!
source: https://www.quora.com/How-much-mathematics-does-Noam-Chomsky-know

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well apparently he didnt study enough math to know what graphs were

unique tree
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@sweet lotus does CK requires lots of pre knowledge to get full read?

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Algebra or smh

mystic lark
#

yo anyone have a recommendation for a measure/probability theory book?

hasty turret
#

This might be good

gray gazelle
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Not that I have read it, but I have wondered about reading stanford math 230 lecture notes

silver herald
#

Measure Theory from what I have read so far seems like cancerous integration ad infinitum

mystic lark
still umbra
#

is there a "classic"/best textbook for learning about complex systems?

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A lot of what I've tried to investigate myself just via googling all seems very handwavy

#

95% of the stuff on youtube/random blogs on complex systems just sounds like corporate speak tbh

night knot
#

Any good recs for Stochastic Processes?

gray gazelle
#

Sheldon Ross, Stochastic Processes

drifting elm
#

@still umbra for control theory or FFT?

agile cave
#

People, next semester I'm going to start my first course of Linear Algebra, in my local bookstore I have this options for books, Linear Algebra and its Applications by David C. Lay, Linear Algebra by Grossman and A modern introduction of linear algebra by David Poole. BTW: At my university they recommend Anton H. Linear Algebra and Strang Linear Algebra, but I can't find them in my lenguage.

still umbra
#

Control theory is one aspect of complexity systems theory

drifting elm
#

right but is this as a prerequisite for fourier analysis or something else?

still umbra
#

Nope

#

just out of interest

drifting elm
#

you want ODE and PDE books

still umbra
#

Applied complexity theory to economics will probably be the end goal

drifting elm
#

then control theory book

still umbra
#

yeah, I'm taking a PDE class this semester

drifting elm
#

I have two signals and systems books

drifting elm
#

they both cover discrete and continuous systems

still umbra
#

I basically want to prepare/prestudy the content for this unit

#

I could email the lect

drifting elm
#

I'm guessing you want to skip discrete time fourier

#

so my books would not be right for yu

#

my books are for CS and EE

still umbra
#

also

#

based name

drifting elm
#

ty

#

Mathematical sociology is the area of sociology that uses mathematics to construct social theories. Mathematical sociology aims to take sociological theory and to express it in mathematical terms. The benefits of this approach include increased clarity and the ability to use mathematics to derive implications of a theory that cannot be arrived...

#

I know nothing about this but it looks like it is closer to your goals

still umbra
#

possibly

drifting elm
#

you probably want stochastic processes

#

I don't know if complex systems is even the right word

still umbra
#

hmm

drifting elm
#

I don't know enough

still umbra
#

A complex adaptive system is a system that is complex in that it is a dynamic network of interactions, but the behavior of the ensemble may not be predictable according to the behavior of the components. It is adaptive in that the individual and collective behavior mutate and self-organize corresponding to the change-initiating micro-event or co...

#

What field of study would you say these ideas come from

#

If you're familar

#

They've come up in some papers I've read

drifting elm
#

"The study of complex adaptive systems, a subset of nonlinear dynamical systems"

#

so there

still umbra
#

about organisational management

#

Ah okay

drifting elm
#

that describes a very specific area of math

#

some terry tao stuff

#

nonlinear dynamical systems

quasi shard
#

How do I get help for math in this place

drifting elm
#

post in a questions channel

still umbra
#

Great question, if only there was a dedicated channel for that

drifting elm
#

maybe you get someone maybe you don't

still umbra
flint forge
drifting elm
#

either way keep it over there

flint forge
#

nonlinear dynamics is in fact dynamics

still umbra
#

oh nice

#

so presumably, I should start with the book in #books-old

#

Introduction to Dynamical Systems

#

by Brin

flint forge
#

Well, maybe

#

reading that book will take awhile

#

are you already familiar w basic point set topology and measure theory?

drifting elm
#

🤦

still umbra
#

No, haven't learnt that yet

flint forge
#

Those are prerequisites for brin/stuck

still umbra
#

I'm doing a topology unit next semester too x)

#

but I doubt it will be much help for reading a book now

#

lel

flint forge
#

it looks like thats no exactly what you want though

drifting elm
flint forge
#

it seems like this isn't really a very organized field

#

i'd look for like a survey text or something specifically about this

still umbra
#

like a review article?

#

for books?

drifting elm
#

a book for your book

drifting elm
gray gazelle
#

Hi

#

Anyone online

#

no

#

everyone is offline.

#

@gray gazelle then what are you

#

offline.

robust palm
#

I'm offline as well

gray gazelle
#

Ok

#

Ok

robust palm
#

we've always been offline

gray gazelle
#

wake up

#

this is a dream

#

@robust palm what also you mean

robust palm
#

don't question

gray gazelle
#

Hi...

#

wake up, it's been years

#

we miss you

#

please

hollow current
prisma snow
#

They weren't talking to you. We prefer you sleeping forever.

hollow current
#

but i am not sleeping neither

hasty eagleBOT
#

The current time for Commander Vimes is 10:26 PM (+06) on Wed, 16/12/2020.
TTerra is 11 hours behind, at 11:26 AM (EST) on Wed, 16/12/2020.

gray gazelle
#

sleeping at 10 pm hmmm

hollow current
#

what is sleeping

hybrid dawn
#

It's funpandaHugg

hollow current
#

this action is unfamiliar for me

#

and fun is also unfamiliar

gray gazelle
#

спать

hybrid dawn
hollow current
#

i dunno what спать means

gray gazelle
#

🤨

prisma snow
#

It's cunt in Russian

hollow current
#

no

prisma snow
#

It is

hollow current
#

cunt in russian is lunasong

prisma snow
#

Finally the origin of my name is known

molten wave
stark creek
#

what's a good book on abstract algebra?

steel viper
#

see pinned

stark creek
#

pinned where?

wooden sparrow
stark creek
#

oh lol

#

i'm blind

sage python
#

Yeah

normal rain
#

Anyone have a pdf link for APPLIED NUMERICAL ANALYSIS USING MATLAB
2nd edition
Author: FAUSETT ?

prisma snow
#

Have you looked on libgen?

normal rain
#

yup

#

not there

prisma snow
#

:(

marble solar
#

I got my copy of Knots and Links

#

First exercise I try is a commutative diagram

#

: (

sudden kindle
#

Get rekt

marble solar
#

: (((((

dapper root
#

what's wrong with a commutative diagram

#

that's literally all I do

marble solar
#

Ok I did the diagram

#

It wasn't too bad

dapper root
#

Lol

#

Man does 1 commutative diagram: his harrowing tale

marble solar
#

I actually had something in algebraic curves, and I was the only one in the class to draw a commutative diagram

#

Ok

#

Take that algebraists

dapper root
#

Lmao

marble solar
#

I think on the first day

#

We had a quiz to state the first isomorphism theorem

#

That prof. did everyday quizzes

#

So you'd come in, 5 minute quiz

#

It was either you got it or you didn't

dapper root
#

First isomorphism theorem lol

#

Aka the only one you use consistently

marble solar
#

IDK even know why they bother teaching them after the second

dapper root
#

They’re useful

marble solar
#

It's much more general than groups

dapper root
#

Third is more useful than first

#

And the lattice one is more important than either of those

marble solar
#

Anytime you have a sufficiently complicated algebraic structure

dapper root
#

You know Emmy Noether proved those?

#

Slim is just shitpostinf

marble solar
#

Yeah, I'm aware

#

My algebra prof had a poster of her in his office

ripe granite
#

elman?

marble solar
#

yA ofc

ripe granite
#

he also had a gauss poster iirc

marble solar
#

What's funny brofibration, is my grad algebraic curves prof. had the same thesis advisor as Elman

#

Their styles were very...similar

dapper root
#

Who tf is this brofibraruon guy

#

all I know there is some junior at UCLA who knows a scary amount of math

marble solar
#

He's at LA if ya couldn't tell

#

There's a lot of those LOL

dapper root
#

Yeah but only a few at UW

#

Don’t apply to Columbia for me okay?

#

Thx

valid moth
#

right, like dami

dapper root
#

Dami’s a sophomore I think

valid moth
#

artistic license

marble solar
#

You go to LA, and you see kids taking grad courses sophomore year and you begin to think it's normal

dapper root
#

Isn’t that normal?

ripe granite
#

I most probably won't lmao, im no probability theorist by ive got a 0% chance of getting in

dapper root
#

I mean among the most committed

#

Tfw

ripe granite
dapper root
#

If you have 0% I have -1%

marble solar
#

Oh are there more freshman that do that now bro?

dapper root
#

And I want to believe I at least have epsilon%

marble solar
#

It used to be Connie would make you wait till sophomore

dapper root
#

Imagine having studied math before uni

#

Must be nice

ripe granite
dapper root
#

Shut up Arch

valid moth
#

what if they never studied algebra in hs and then did commutative algebra first year

dapper root
#

Lol wut

valid moth
#

galois theory first semesterr

dapper root
#

Who did that

#

Dami?

valid moth
#

someone

marble solar
#

Galois?

valid moth
#

no

hasty turret
#

I mean, That seems kind of plausible

dapper root
#

Terrence Tao

#

Commutative algebra first?

valid moth
#

no galois theory

dapper root
#

Doubt it

#

Eh

marble solar
#

Hegel/Sloth/Moth/whatever they go by now

dapper root
#

They’re still in HS tho...

valid moth
#

ms*

marble solar
#

Are you done with finals bro?

dapper root
#

Yup

#

Or maybe that’s brofibraruon idfk

marble solar
#

congrats chmonkey lol

ripe granite
dapper root
#

Okay brofibration wtf class are you taking

marble solar
#

Teo ruiz?

dapper root
#

that went over that insane like

#

AT type shit you were talking to max about

marble solar
#

226C third quarter grad RG?

ripe granite
#

spectral AG

marble solar
#

Are you in 227?

ripe granite
#

237

marble solar
#

Ah ok

dapper root
#

They’re offering a spectral AG course?

ripe granite
#

topics in alg top

marble solar
#

Yeah, UCLA runs advanced topics courses all the time

dapper root
#

And you’re taking it junior year and you have 0% chance to get into Columbia

#

-_-

#

Sure

marble solar
#

UCLA mindset, you're always surrounded by people that are miles ahead of you

#

No matter what level you are at

valid moth
#

well no

#

not if you're at the top

dapper root
#

This is crap you study in like 4th year of your PhD lmao

ripe granite
dapper root
#

Or 3rd

marble solar
#

Even the top people feel like you're not at the top

dapper root
#

Bruh...

#

I’m now depressed about my chances

hasty turret
#

Does that apply to tao?

dapper root
#

I’m gonna go do Hartshorne

#

I bet Tao felt off

#

Given that he was like 14

#

Altho his undergrad wasn’t a crazy one

#

At a crazy uni I mean

marble solar
#

Usually smaller schools do a better job of mentoring students

ripe granite
#

well yea, he probably wanted to go somewhere close to home

marble solar
#

As everyone could recall, the way professors at LA treat students is less than great lol

ripe granite
#

as he was 14

dapper root
#

Given that he was a kid

#

Yeah

#

So I just mean he probably wasn’t surrounded my monsters

valid moth
#

you just got sniped

marble solar
#

You could be a literal genius and they'll still shit on you for not being able to do X fast enough

valid moth
#

sleep

marble solar
#

||For John it was Visan in Harmonic, but you didn't hear that from me Bro||

ripe granite
#

Visan is just tough lmao

#

great at teaching tho

#

but scary

dapper root
#

Who tf is John

#

Lmfao

valid moth
#

johnDS

ripe granite
#

also, I did not talk to any profs during my second year (because I'm an idiot), so I might be screwed on the rec letters part of it

#

also underperformed on my REU, so yeah unless I do something over the next 2 quarters I will end up with a very mediocre application

valid moth
#

ample time to prove quantum ergodicity conjecture

ripe granite
#

Fortunately, the option of doing a masters and re-applying to phd programs does exist.

#

wdym

dapper root
#

There’s a few more that do I think

#

But I want to go to Columbia which is maybe a tier down

#

I mean I think one saving grace i hbe is that my gpa overall is still > 3.9

#

Outside of math too

ripe granite
#

nah getting into chicago or berk is insanely hard

dapper root
#

Which isn’t true for some. But idk if thag really matters Much

#

Idk how much they look at non-math gpa

ripe granite
#

easy and hard aren't well defined anyway

sage python
#

I was wondering if you meant undergrad or grad for a sec lol

#

I feel like at some level it becomes sorta up in the air? Like I def know people who got rejected by Chicago but got into Princeton, etc

#

Overall Princeton's probably a bit rougher though

ripe granite
#

this definitely isnt true

#

there's quite a few of them

sage python
#

I mean define super

#

Okay that's likely a bit more true, esp if we include UCLA as top 10

ripe granite
#

even at UCLA, which isnt a hard school to get into, there's at least 5 people in my year with very competitive applications

#

5 people just at UCLA

sage python
#

But there are def tiers below "grad classes freshman year" which the typical good applicant has to worry about

ripe granite
#

there's a lot more unis

sage python
#

I don't have a good read on Chmonkey's level so if he's knocking on the door of that then he's prob fine

#

But e.g. I was learning grad level analysis my second year

dapper root
#

You don’t have a read on my level

#

Smh my head

sage python
#

And I ended up at Wisconsin which is good but a step down

#

Lmao

ripe granite
valid moth
#

there's at least 5 people at UCLA yes

#

big school

sage python
#

So the year I entered at Chicago there were 13 people who started right away in honors analysis

dapper root
#

This shit stresses me out

#

I’m gonna go do math

#

Lol

valid moth
#

no

dapper root
#

Arch

#

That is literally the literal complete opposite

#

Of what I’d want to do

dense pewter
#

you all worry too much about this imo

#

just go learn math and stop caring about others

ripe granite
#

UCLAs intake is approx 20-30 grad students per year. If that's the average intake, then that's approx 200-300 spots in the top 10

sage python
#

I think Chmonkey's only applying this round to Columbia which is gonna be especially rough this time around

dapper root
#

Yup

sage python
#

So full disclosure it might not look pretty. But I mean he's got another year

#

And even if he doesn't get into Columbia he'd be fine at e.g. Wisconsin

dapper root
#

I mean I did that knowing that’s the case

marble solar
#

I understand what you're feeling bro, it's so demoralizing when everyone around you feels like they're miles ahead of you no matter what; you'll probably get into a quality program Bro

ripe granite
sage python
#

slim yeah

dapper root
#

Yeah slim

#

I could graduate this year

valid moth
#

don't worry chm smh right here i am looking at 2019 mathgre apps and there's a 3.87 gpa DAM with 83% math gre and two reus (and basically just this) who got into brown

dapper root
#

But I want to do another year

sage python
#

If he gets into Columbia he'll push hard to graduate this year, otherwise normal

dapper root
#

Yup

#

I mean okay so

sage python
#

Chmonkey did you do the Columbia app?

dapper root
#

School thinks 4th but this is my 3rd year here

#

I came from community college in Hs

#

And applied as transfer like a dipshit

#

So they said I was a sophomore my freshman year

#

It’s all fucked

#

So this is “4th” year

sage python
#

Did it cause you trouble?

dapper root
#

But really 3rd

#

Eh, I’ll just explain it on my application

#

Or whatever

#

And yes I’ve started the application process

#

Wrote drafts of the statement

#

Asked for refs

#

Reccs

#

Etc

sage python
#

Anyway yeah if you finished the Columbia app already just pretend you already got rejected, start doing the things you need to do to graduate this year just in case

dapper root
#

Haven’t submitted but it’s due Jan 14tb

#

I mean so

#

All I need to graduate is “non-major credits@

sage python
#

But try to forget that you did it

dapper root
#

And it’s so few I can do it in 1 quarter if I do 18 I think?

#

So I can graduate if I choose to as late as like March

valid moth
#

you know, i have yet to see someone get into MIT on these mathgre pages

dapper root
#

I might get fucked on what classes I get but

valid moth
#

i should make a bingo card

dapper root
#

¯_(ツ)_/¯

gray gazelle
#

Archsys, you have simply not looked hard enough

#

I have definitely seen people who have gotten into MIT

sage python
#

So yeah finish the app soonish and then forget about it. Don't wanna hype yourself up too much and then get disappointed

marble solar
#

Maybe it's cuz ppl who worry about posting stats on a brazilian trading card site don't do enough math?

sage python
#

Moonbears all the good students are terrified and making chance me posts in a naive attempt to lessen their stress

#

Smh

ripe granite
sudden kindle
#

hey i submitted 7 grad apps yesterday]

marble solar
#

Congrats amin!

sage python
#

Lol

marble solar
#

not you m'king

sudden kindle
#

they should redesign mgre forum

marble solar
#

No

sudden kindle
#

it looks like 2000 website

marble solar
#

They should kill the mgre forum

ripe granite
#

yes

sudden kindle
#

that too

marble solar
#

Reddit and /sci/ already exist

#

There's no need for some bad forum for ppl to lie about their stats

sudden kindle
#

i can never trust someone on reddit

marble solar
#

We already have terrible ones for that

sudden kindle
#

i bet a lot of people lie on mgre forum

marble solar
#

Yes everyone lies on the internet

sage python
#

What's the motivation for doing that?

marble solar
#

I bet you think my name is moonbears

sudden kindle
#

just to feel good about anonymous jelousy

sage python
#

I... see...

marble solar
#

I have a 4.0

#

sweet sweet endorphins

ripe granite
#

oh wow Moonbears, you must be so smart

marble solar
#

KEEP IT COMIN'

ripe granite
#

sign my forehead

marble solar
#

I always wanted to ask Terry to sign my chest

#

but I never had the balls to do it

ripe granite
marble solar
#

I'd have to be pretty plastered to ask him for that

valid moth
#

LOL i just saw one

#

alright

hasty turret
#

I think He would just be like "ok, This is weird,but whatever idc"

valid moth
#

marking that off on my bingo card

#

that i am making right now actually

sage python
#

Heh that was an amusing exchange

valid moth
#

namely i saw someone get into MIT on mathgre

sage python
#

Did you see someone get into mathgre on MIT tho?

sudden kindle
#

but seriously tho, im in a discord server with a few other math phd applicatants. thats the only type of interation i get with the application process community. i dont look on mgre forum but they post about it sometimes

valid moth
sage python
#

Also mathgre is for plebs real people who wanna panic about admissions use [REDACTED]

#

I will not say the name of the site because some people here are in the middle of grad apps and I do not wish to ruin their lives

dapper root
#

Lol I don’t know what this is supposed to be a reference to even

valid moth
#

i win this bingo already

#

bingo

sage python
#

Chmonkey that's good

marble solar
#

No anarch, do

sage python
#

Don't look it up

marble solar
#

"Large public"

#

"small private"

valid moth
marble solar
#

"> 3.8"

#

What other shit do people say

dapper root
#

I thought math GRE was the the de facto one

marble solar
#

"Double major"

#

"Triple major"

dapper root
#

I saw a lot of like

sudden kindle
#

.lolol

marble solar
#

"Double minor"

dapper root
#

3.98 math gpa

valid moth
#
Post by lzxnl » Wed Jan 30, 2019 10:04 pm

Undergrad Institution: International, one of the highest ranked in the country
Masters Institution: Same as above
Major(s): Applied Mathematics (Diploma, Masters), Physics (Bachelors)
GPA: 4.00
Type of Student: International Asian Male

GRE Revised General Test
Q: 170 (96%)
V: 165 (96%)
W: 6.0 (99%)
GRE Subject Test in Mathematics:
M: 890 (92%)

TOEFL Score: Waived

Program applying: Applied Mathematics PhD

Research experience: 1 summer project on fluid mechanics + student conference, masters thesis on rarefied gas dynamics which my supervisor is rapt about, writing a paper soon, original work
Awards/Honours/Recognitions: Freshman maths award, scholarship in masters all semesters for academic merit, dean's list first and third year undergrad (not second year because exchange)
Pertinent activities/jobs: Have tutored every maths subject completed in my first two years of undergrad, as well as a few from my third year and one from my masters.
Any Miscellaneous Points that Might Help: Masters supervisor works at Caltech half the year as a professor (which means supervision in that semester is indeed challenging ): )
Any Other Info That Shows Up On Your App and Might Matter: Consistently did more subjects than the standard work load, consistently did subjects without the prerequisites and performed well in them (like graduate level Electromagnetism as a sophomore, graduate level Stochastic Calculus without having taken measure-theoretic probability)

Applying to Where:
MIT - Accepted 8/2, 30k fellowship, going :D
Harvard - Rejected 7/2
NYU Courant - Rejected 12/4
Caltech - Rejected 23/2
UCLA - Rejected 19/4
University of Michigan - Ann Arbor - Accepted unofficially 5/2, officially 6/2
Brown University - Accepted unofficially 31/1, officially 22/2```
#

30k damn

sudden kindle
#

quadruple major

dapper root
#

10th percentile math gre

#

Like hmmmm

marble solar
#

One of my groomsmen got 8th percentile

#

lol

slender sphinx
#

What is accepted unofficially

dapper root
#

Rip

slender sphinx
marble solar
#

He got in for an applied math program

sudden kindle
#

michigan is so cool

#

i wanna go there :<

ripe granite
#

same

sage python
#

Chmonkey yeah I mean I guess keep checking out math gre and see what info you can glean noting that some stuff is weird

dapper root
#

I will not

#

Keep going there

sage python
#

Okay good

valid moth
#

Undergrad Institution: Asian
Major: Math
Minor(s): N/A
GPA: Major 3.9
Type of Student: International

GRE Revised General Test: Q96%/V65%/W41%
GRE Subject Test in Mathematics: 91%

TOEFL Score: 108 = R30/L30/S23/W25

Program Applying: Pure Math

Research Experience: N/A
Awards/Honors/Recognitions: Nothing special
Pertinent Activities or Jobs: Have been a tutor a few times
Any Miscellaneous Points that Might Help:
- 2 famous letter writers
- 2 graduate courses

Applying to Where:
Chicago - Admitted on Jan 8 :D GOING!
Stanford - Rejected on Feb 23
Princeton - Rejected on Jan 31
MIT - Rejected on Feb 13
UCB - Rejected on Feb 8
Columbia - Admitted on Feb 8 :D
Brown - Rejected on Feb 15
UPenn - :shock:
Toronto - Rejected on Mar 28
UBC - Rejected on May 10
Wisconsin Madison - Admitted on Feb 13
Northwestern - Rejected on Feb 10
UCSD - Rejected on Mar 7
UCSB - Admitted on Feb 15
UCI - Withdrawn``` tf
dapper root
#

I looked at it freshman year

#

And went huh

valid moth
#

how did they get into chicago

marble solar
#

I think it's just too inconsistent and too many liars

valid moth
#
Awards/Honors/Recognitions: Nothing special
Pertinent Activities or Jobs: Have been a tutor a few times
Any Miscellaneous Points that Might Help:
- 2 famous letter writers
- 2 graduate courses```
dapper root
#

Hey arch

valid moth
#

uchicago

dapper root
#

Wanna stop posting this

ripe granite
#

CAN WE PLEASE STOP POSTING MGRE POSTS

valid moth
#

well sure i already did my bingo

sudden kindle
#

yeah stop

sage python
#

I mean 2 famous letter writers is not bad, and the stats are high

valid moth
#

seems i have touched a nerve amongst the undergrads

sage python
#

So I could see it

valid moth
sudden kindle
#

waht is this gif lol

sage python
#

I mean it blows up the screen too lol

sudden kindle
#

yeah i cant read the convo

valid moth
#

you mean you don't have a 32:9 monitor?

#

🤔

gray gazelle
#

Imagine not having an 8 inch phone

sudden kindle
#

this kid is so cool

ripe granite
#

PTYamin, where did you apply?

sudden kindle
#

I applied to 7 schools

dapper root
#

UW Seattle?

marble solar
#

Applications were way more exhausting than they should have been

sudden kindle
#

Princeton, MIT, Michigan, UW Madison, Minnesota, CU Boulder, Rutgers

dapper root
#

Wtf

marble solar
#

OH FUCK

sudden kindle
#

yay i was able to recall from memory

dapper root
#

No UW Seattle

#

Cringe

marble solar
#

I DIDN'T APPLY TO BOULDER

#

Rip

sage python
#

Seattle's not the best for number theory tbh

marble solar
#

Sorry to my letter writers who all submitted to boulder

slender sphinx
#

Man everyone is applying this year thonkeyes

ripe granite
#

what kind of math are you interested in?

sudden kindle
#

damn moon bears

sudden kindle
#

dont you have a spreadsheet with the deadlines?

marble solar
#

I got so god damn stressed about my car and Austin

#

I do

#

My car got broken into on Monday and my shit got jacked

dapper root
#

Bruh

sudden kindle
#

oh fuck

#

im sorry

dapper root
#

Fucking rip

sudden kindle
#

thats terrible

marble solar
#

Then Austin decided to throw a fit about my uhhh transcripts not being official

#

so I scrambled to get that done

sudden kindle
#

wait

#

what do you mean by that

marble solar
#

You needed official transcripts just to apply to Austin

#

Yes

sudden kindle
#

you had to upload official transcripts or send them?

marble solar
#

I had to email them to myself

sudden kindle
#

yeah i did that

marble solar
#

And then download them, then upload them to the austin portal

#

Not the unofficial ones

sudden kindle
#

like you get an official transcript (its 10 dollars at my school) sent to yourself

marble solar
#

Many of my schools that I studied at charged me

sudden kindle
#

and then upload that

marble solar
#

I have studied at 4 or 5 schools now

#

so that was not fun

sudden kindle
#

oh shit

sage python
#

Oh

#

Yikes

sudden kindle
#

not just one school

marble solar
#

I did CC to UC to a CSU

#

and I cross enrolled to another UC while at a CSU