« first day (2634 days earlier)      last day (2300 days later) » 

11:00 PM
Banach-Steinhaus is such a cool sounding theorem
 
The best thing about it is listening to non-Germans trying to pronounce it :P
 
banack stainhouse
 
@ACuriousMind ...does that happen often to you?
 
@0celo7 Not anymore, obviously, but I heard a few attempts :P
 
Banack-Stein house
I can't pronouce Noether
quite sad
 
11:03 PM
not her
 
It's just Nöter. Rhymes with Köter. Nothing hard about it :P
 
@ACuriousMind try saying it with an American accent without sounding like you're dying
 
I don't know how to say things with an American accent
When my English doesn't sound German it apparently sounds British :P
 
exactly, you've got an impenetrable german accent
I have a perfect American accent
it makes Noether hard to pronounce
same with H\"ormander
 
whoremander
 
11:07 PM
exactly
 
Hm
Apparently the subspace of the Hilbert with momentum $0$ isn't necessarily the vacuum state
 
@Slereah Should I throw random gabagools in the next talk
 
@0celo7 Depends if anyone is Italian
 
nop
a Greek but that's as diverse as it gets
 
Do any of you have any recommendations on a video series to learn mechanical waves? My textbook just isn't cutting it right now
 
11:16 PM
@Slereah Of course not, you can have a system of arbitrarily many particles with zero total momentum, after all!
 
True!
Is it of interest?
 
Of interest to whom?
 
Me
 
That's for you to know :P
 
thank god for the french
the french have the best analysts, don't they folks
 
11:19 PM
crickets :(
 
@CookieToast Lewin MIT videos on waves maybe videolectures.net/mit803f04_physics_vibrations
 
:D I'll check it out!
Thank you
 
I think I found a trivial error in gsw
 
I tried searching all over youtube, but I wasn't finding anything good
 
Why are you set on video lectures instead of notes or a book?
 
11:21 PM
@CookieToast maybe this as well nptel.ac.in/courses/122105023
 
I've always found videos to be the most inefficient mode of knowledge transmission
 
Haag calls the rigged Hilbert space the "degeneracy space"
 
@ACuriousMind notes are fine too, but I've pretty much used up all of my textbook budget for this semester, and I'm just not liking how my current textbook is presenting the theory
 
People learn in different ways, I find videos can make an impenetrable book easy if done right
 
@Slereah I doubt that, because a "rigged Hilbert space" is actually a triple of spaces. You likely mean that he calls one of the three spaces involved the degeneracy space :P
 
11:22 PM
@ACuriousMind The distribution one, yes :p
because of course that's the one
The other two are just the Hilbert space and a subset of the Hilbert space
there would be no point
 
@CookieToast what is your book
 
@Slereah Accuracy is important in this matter, there's too much confusion already
 
@bolbteppa University Physics by Young and Freedman
 
"The irreducible representations of $\bar{\mathfrak P}$ of class $(m_+, s)$ yield the quantum theory of a single particle with rest mass $m$ and spin $s$ alone in the world"
 
What's the heart doing there
 
11:26 PM
How sad
 
@CookieToast these youtube.com/playlist?list=PLX2gX-ftPVXWa7_h_WNtnEu5EZZGF8kQD and these youtube.com/playlist?list=PLX2gX-ftPVXUAiDhArTNKf3LbfB73gkn8 and others by him are pretty close to Y&F compared to the other ones
 
@ACuriousMind the heart wants what the heart wants
 
good lord this problem
 
@Slereah All too true
 
@Slereah awww... I was planning a quip about maths and Battlestar Galactica :P
 
11:27 PM
@bolbteppa I haven't seen much of this channel before. I'll give it a try :)
Yeah I dunno what it is, but I'm not super happy with Y&F
 
nvm, the french have typos
 
"The belief that the actual world is the best of all possible worlds, or that God gave laws of nature opticmally designed to achieve an end, has provided through centuries an inspiration to fundamental physics."
 
the german one seems to be better
just like WW2
 
'Just 7 numbers'
If you tinker these 7 numbers the universe will be unstable
etc
 
Oh man
Haag is one of Those guys
Who writes "Lagrangean"
 
11:35 PM
I haven't looked into this stuff
 
@Slereah Someone who realizes the name is 'Lagrange', not 'Lagrang'? :P
 
But the suffix is -ian to form an adjective
 
I can't do this
I hate my life
 
Schroedinger runs
 
what is "Lagrangian" short for, anyway
 
11:40 PM
why would it be short for anything?
 
It is an adjective
not a noun
 
Oh, you probably mean it's short for "Lagrangian function"
 
yeah
 
It's actually the Lagrangefunktion in German, but it's been so long I've spoken in German about physics that I tend to use 'Lagrangian' and 'Hamiltonian' even when speaking to Germans.
 
So by that logic, with ean it's no longer an adjective and can be used standalone, hmm...
 
11:43 PM
No, no one uttered logic to that effect :P
 
ian need not mean something is turning it into an adjective, en.wiktionary.org/wiki/-ian '(as a noun) Having a certain profession.'
comedian
Lagrangian is having the profession of being a description of the universe in some variables... :p
 
Boo
^me
 
@bolbteppa ... Or perhaps it was just a name to a function that Hamilton came up with?
 
"The requirement $a(p)\Psi_0 = 0$ has to be added to the algebraic relations because the latter allows many inequivalent irreducible Hilbert space representations"
Is that to avoid the $\Psi = | 1,1,1,...\rangle$ drama
 

« first day (2634 days earlier)      last day (2300 days later) »