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10:00 PM
@acuriousmind hey hows it going acm
I'm going to throw out a pretty vague question out of curiosity feel free to ignore it lol
 
@Obliv Hi there :) Pretty well, how about you?
 
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Pretty well recently. been having ups and downs but I'm young so I've persevered so far :)
 
Hmm, something's wrong with ChatJax, you seem to have put the dollars in the right places but your sentence still looks messed up to me
 
yeah thats weird not sure what happened
how much does math change as you get further into graduate lvl + physics? More specifically, do properties like ab = ba or a(b+c) = ab + ac change? Like are there even mathematical 'structures' that governs areas in physics? Or is it more like X equation describes that relationship, Y describes that, and then you just go from there?
 
Just post it without the dollar signs, I'm sure I can deal :P
 
10:15 PM
I was curious because I imagine in the last couple centuries we have made a lot of progress in observing phenomenon and I hear things thrown around like non commutative algebra in QFT. So, I'm guessing certain mathematical properties seem apparent in a macro scale and change when you observe different things? I told you it was vague
 
@Obliv I wouldn't see that as "math" changing. For instance, you certainly encounter non-commutative objects for which $ab \neq ba$ - but $a$ and $b$ are not ordinary numbers here, but e.g. matrices, so it's perfectly fine mathematically.
That is, it's not "graduate physics" that's changing the rules - mathematicians did come up on their own with many weird structures different from real numbers without any "help" from physicists ;)
 
@Obliv I work with manifolds that aren't even manifolds
no help from physics needed there
@ACuriousMind If someone writes H(A) do then mean holomorphic A -> C or A -> A
 
10:40 PM
@acuriousmind I see. I'm guessing physicists help develop new math in unknown areas though at least sometimes? But normally it's the other way around?
@0celo7 yeah that doesn't even sound like math but if I ever get to that point I might understand lol
 
@Obliv I don't think it's one way or the other - sometimes existing math inspires physicists, sometimes weird non-rigorous physics calculations inspire math.
@0celo7 They clearly mean the cohomology ring of A!
 
ooh I had no idea you knew software engineering @acuriousmind congrats on the job :D
i've always thought of you as the software so not sure how that works really
a.i. has really come far in these last few years i guess
 
@ACuriousMind that would be $H^\bullet(A)$!
 
@Obliv Thanks :P I'm not sure whether I "know software engineering" but I seem to be able to produce code that works and is not more terrible than what anyone else is writing ;)
In slightly related news, @BernardoMeurer if I told you I want an easy-to-use GUI library for Python, nothing fancy, just buttons in an orderly fashion, what would you recommend?
 
Hehe I like that style. Just good enough is good enough for me :D
 
10:47 PM
(Don't worry, this is for personal use, you're not influencing SAP coding :P)
 
so @ACuriousMind have you really stopped doing math
 
@0celo7 Pretty much, yes
 
amazing
so I guess you don't want to read something that both of us could enjoy
 
Oh, I still enjoy math and physics, I just don't do them anymore :P
 
no way :O @acuriousmind not even on the weekends?
 
10:52 PM
@ACuriousMind do you want to learn some ncom geo?
I want to do something that's not analysis
 
@acuriousmind do you find software development lets you express your creativity as much as physics and math? Do you get to work on complicated algorithms and stuff?
 
@Obliv Not beyond answering questions here. I mostly spend my weekends with friends and/or playing video games and/or working on other little side projects (such as trying to program a Vampire - the Masquerade character generator)
 
that sounds a lot better than my weekends of trying to understand the life works of Yau :(
 
@0celo7 at least you're not doing nuclear engineering anymore
 
@Obliv I actually find it suits me much more - I feel the short term reward cycle when programming something (you can almost always just compile what you have and see how well it works right now, especially when following a test-driven paradigm) is much more motivating than the long-term reward cycle in math&physics where you can work weeks on a difficult problem and not make any significant headway.
 
11:02 PM
@acuriousmind Yeah I'm the same way. That's one of the reasons why I wanted to go more towards applied math/CS instead of physics. I haven't reached the end in either but from what I gather, it's a pretty unstable work environment when doing research in physics. On top of that, there's pressure to publish every so often etc
 
what a bunch of weaklings
 
LOL sorry but my dads not an engineer and I'm pretty broke @0celo7
 
I'm broke too
but once I solve this problem Yau will love me and give me money
 
Yeah but you're college broke. I'm broke broke
@0celo7 yau is probably broke too
 
Yau is the top mathematician in China
He has everything he wants
 
11:04 PM
What makes him the top mathematician?
 
500 publications
 
Wow he's got quite a list of accomplishments. If you can understand his works @0celo7 you're probably the best mathematician I know
not like anyone comes close though..
 
editor of every major geometry journal
@Obliv I am trying to understand his stuff from the early 80s and a paper he wrote last year
 
@Obliv I wouldn't have cared about the unstable work environment so much if I felt truly engaged with research, but I realized that the day-to-day work of a research scientist didn't really make me happy
 
@0celo7 does he speak english? lol
 
11:08 PM
he's been an American citizen for longer than I've been alive, so probably
 
@0celo7 okay I thought maybe part of the difficulty in understanding his work might be him speaking cantonese (jk)
 
Most of the researchers I got to know were so...driven by some sort of ambition I just lack.
 
Yau's writing is not the best
But the kind of math he does is very hard to understand anyway
 
11:25 PM
@ACuriousMind You sure it was ambition and not just insane work ethic? Or maybe those are the same. I've had a hard time distinguishing those two sometimes. Like, when I used to go to the gym in high school, at first it was ambition/curiosity and it eventually just became routine sort of.
@acuriousmind I have a friend who had studied some basic undegrad neuroscience and he had talked to me about things related to this and I feel like understanding yourself via neuro & psychology etc is something that a lot of mathematicians and physicists lack.
I remember in math chat some guy mentioned balarka(or maybe it was someone else) being depressed. I felt bad because just because the guy is young and probably has little idea how to take care of himself, mentally and physically to avoid feeling certain ways. I think he's my age tbh.
 
@ACuriousMind help
 
@acuriousmind sorry I didn't mean to make it seem like you aren't already educated in these topics. You're way beyond my level of knowledge anyway.
 
@Obliv I think you (or at least I :P) need some form of ambition - or maybe just motivation - to generate that work ethic. For instance, I have much less trouble putting in hours at my job than I had putting in hours to read yet another paper because of the short reward cycle I outlined above.
And there's also the much more immediate feeling that other people depend on the work I do, which wasn't the case at all with the kind of physics I did
@0celo7 With what?
 
@ACuriousMind I am writing it
one sec
 
@Obliv @BalarkaSen is a regular visitor to both math and physics chat, not sure whether you mean him either, but I agree in general that self-reflection and self-care are rarer among mathematicians and physicists than they should be
 
11:34 PM
@ACuriousMind So I have $\Omega\subset\Bbb R^2$ open, $z,w\in\Omega$
I want a curve $\gamma$ from $z$ to $w$ such that some neighborhood $U$ of $\gamma$ is contained in $\Omega$ and is simply connected
I know how to do this, just take an embedded curve and then do a tubular neighborhood
But I probably can't use that construction
is there a more elementary construction?
Covering by balls works but it's hard to justify correctly
 
No idea, I think the intuitive picture I have corresponds to your tubular construction
You once again overestimate my rigor in geometry - I'm a rigorous algebraist, but a intuitive geometer ;)
 
Well I wouldn't justify this construction if it were up to me
It's clearly true
but the complex analysis grader has something against my geometric arguments
@ACuriousMind I think one can construct a finite polygonal path
and then take $U$ to be rectangles covering the legs
@ACuriousMind Uh, is this problem trivial?
set the RHS = f(z) in $\Omega$
then $f$ is holo and constant in an open set, so is constant everywhere
done?
 
@0celo7 That seems to be just an application of the identity theorem, no?
All you need to know is that $\exp(f)$ is holomorphic if $f$ is.
 
as I just said
oh I meant = h(z)
but whatever
 
11:53 PM
@acuriousmind yeah I don't even know his circumstances so I probably shouldn't have brought it up lol. btw, is your avatar from warcraft?
 
@eulB how goes the fredholming
 
@ACuriousMind Oh true. I mean, cs ventures can be quite a long reward cycle or at least unstable especially for startups I'd imagine.
 
hey look it's obliv
 
@eulB oh you're the guy who likes the color blue a lot right?
 
that's cold
 
11:59 PM
ice cold.
 
like a glass dildo
 
That's the first thing that comes to mind
 
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