21 күн бұрын
21 күн бұрын
21 күн бұрын
21 күн бұрын
21 күн бұрын
4 ай бұрын
4 ай бұрын
4 ай бұрын
4 ай бұрын
4 ай бұрын
Пікірлер
@DistortedV12 Ай бұрын
This is very dense lecture and I am definitely not target audience but cool
@manoshidas1063 3 ай бұрын
Interesting Mr Mallick
@jfjfcjcjchcjcjcj9947 4 ай бұрын
Is W ~ N(0, I) randomly sampled at every training iteration or is it just sampled randomly once at the beginning of the training and then stays fixed at those sampled values?
@17thsavior 4 ай бұрын
wow, ravi vakil giving a lecture rare treat
@xaviergonzalez5828 4 ай бұрын
Loved every minute of this lecture!
@antondevey 4 ай бұрын
Starts at 2:39
@NoNTr1v1aL 5 ай бұрын
Absolutely amazing lecture!
@SidneyEmerson 5 ай бұрын
If you don't like something, change it. If you can't change it, change your attitude.
@pantaloonsxD 7 ай бұрын
The lack of citations on this lecture is suspicious. Shouldn't there be some publication if this guy is at all creditable
@arunnavinjoseph9262 7 ай бұрын
Audio is not clear.
@imrematajz1624 Жыл бұрын
This might be an absolute no-brainer for someone in the know: K-theory = Kategory theory given the implicit description referring to functoriality. It would have put me out of my misery early on if this had been made clear from the word get go. The meat can be found starting from 1:04:22 examples. Relation to P-adic and Adelic groups is a revelation!
@barijo6043 Жыл бұрын
He passed away recently. I didn't know him well, but he always seemed like such a friendly and positive person. During the difficult times of the lockdown, his lessons helped me to stay motivated and engaged in my studies. He kept a good balance between explaining new topics, answering all individual questions and the big picture. Thanks, Dr. Lutz, may you rest in peace
@miosz8150 Жыл бұрын
Zajebisty film i wykładowca 🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥
@kajtusmarszalke3481 2 ай бұрын
pogczamp
@ciaopeople9664 Жыл бұрын
K-theory, huh, yeah What is it good for? Absolutely nothing, uhh
@lukkamayer9698 Жыл бұрын
RIP Dr. Lutz
@axelnh5786 Жыл бұрын
Rest in peace Dr.Lutz
@clickaccept Жыл бұрын
The general principle of conemporary mathematics, is attach the word "theory" to soemthing. Then you have a career. apparently.
@newwaveinfantry8362 6 ай бұрын
If you think it's easy to be a mathematician and that we just write nonsense, then you are welcome to come join us.
@clickaccept 6 ай бұрын
@@newwaveinfantry8362 I am a mathematician, I just happen to understand that developing a career is more-or-less equivalent to the membership part of a social club.
@newwaveinfantry8362 2 ай бұрын
@@clickaccept I don't understand what that means. Are you saying that building a career in pure math or coming up with a new theory is something people do just for clout? If you're a mathematician as you said, that is your career, so does that apply to you as well? If one is going into mathematics as a career, then it is clearly out of one's own passion and skillset. There are far easier things to go into for fame and status than mathematics and the "fame" from doing mathematics isn't even all that, since it's only amongst other mathematicians. Are you saying that new theories are just status symbols?
@clickaccept 2 ай бұрын
@@newwaveinfantry8362 You reply repeatedly with "are you saying", always taking the most bizarre interpretation as if you are speaking to an idiot. This means you aren't interested in my view, rather you are interested in starting an argument. I suggest you do something else with your time. Academia is overburdened with midwidts who make a career in the manner I have suggested. One way to spot them, is to see who is attaching the word "theory" to the things they study. Someone who dresses in a uniform, is not always an exemplary officer.
@adudzik Жыл бұрын
Loved this talk, it was extremely well-scoped. I never really understood how to extend intuition for characters of finite groups to the compact setting, but this made the whole thing very concrete and easy to follow.
@stevelamprou Жыл бұрын
You lost me at "Suppose we have an abelian semigroup".
@polymloth Жыл бұрын
I read this 2 seconds before he said it how odd :D
@ethanjensen7967 Жыл бұрын
This lecture is excellent!! Thank you!
@AkamiChannel Жыл бұрын
This deserves so many more views! Have you set the tags for the video?
@dannycrytser7268 Жыл бұрын
[Spoiler for problems] For exercise 4 -- is the suggested simple solution just that the integral over R vanishes for functions in H^1?
@alexandershapiro28 Жыл бұрын
This is the best video for an introduction of k-theory that I found, together with math-life-balance was a "juicy" math indeed.
@johnnyq4260 Жыл бұрын
So what is K-theory good for?
@newwaveinfantry8362 6 ай бұрын
@@johnnyq4260 Algebraic topology, algebraic geometry and ring theory.
@hugoramonolmedomareco6322 Жыл бұрын
Thank you
@shreyasiyer2718 Жыл бұрын
What course is this? What uni?
@Adam_Wegert Жыл бұрын
Hello, this talk was given at the ,,Baby steps beyond the horizon 2023'' organized by Insitute of Mathematics of Polish Academy of Science, University of Warsaw and University of Wroclaw
@IggySpolsky Жыл бұрын
Cool
@Kacpereniek 2 жыл бұрын
Jak ja fan
@voidisyinyangvoidisyinyang885 2 жыл бұрын
Thank you Michal Eckstein - very fascinating. No mention of Shahn Majid and how the noncommutative would cancel out the black hole singularity?
@urfan7850 2 жыл бұрын
Thanks for video.Amazing!
@banachcenter5341 Жыл бұрын
Glad you liked it!
@PanJapa12321 2 жыл бұрын
hello Kitty!
@qwerty123qwert123 2 жыл бұрын
It is nice if this view is correct. I do not have the expertise to verify, if this is all true.. I truly hope this all correct. The example given at at 27. minute did not work for x1=2,x2=3,x3=2 . This means if A=[(1+2)/2,(2+1j*3)/2;(2-1j*3)/2,(1-2)/2]; or A=[1,0,0;0,(1+2)/2,(2+1j*3)/2;0,(2-1j*3)/2,(1-2)/2] A is not equal to A*A?
@clickaccept Жыл бұрын
Is he relying on x1^2+x2^2+x3^2=1 perhaps?
@NoNTr1v1aL 2 жыл бұрын
Absolutely amazing video!
@jackozeehakkjuz 2 жыл бұрын
How does this have so few views?! this is wonderful. Excellent exposition, crystal clear and very inspiring. Thank you very much for sharing!
@newwaveinfantry8362 8 ай бұрын
There are very few people in the world who understand this level of abstract algebra.
@wellmax7212 2 жыл бұрын
great talk, thanks
@rosieshen8431 2 жыл бұрын
11:57 lecture starts 12:56 basic definitions 28:43 history of K-theory 44:53 tangent vector field on spheres 58:26 K-theory for C^*-algebras
@jackozeehakkjuz 2 жыл бұрын
1:29:30 Call from Sarah.
@اسلامكمال-ح4ض Жыл бұрын
@@jackozeehakkjuz who is sara
@newwaveinfantry8362 6 ай бұрын
@@اسلامكمال-ح4ض My guess is his wife or daughter, judging by how he speaks to her.
@adammaj1 2 жыл бұрын
NCG = NonCommutative Geometry
@adammaj1 2 жыл бұрын
commons.wikimedia.org/wiki/File:Cauliflower_Julia_set_DLD.png
@adammaj1 2 жыл бұрын
commons.wikimedia.org/wiki/File:Dynamical_plane_with_branched_periodic_external_ray_0_for_map_f(z)_%3D_z*z_%2B_0.35.png
@vivgm5776 2 жыл бұрын
An excellent and inspiring lecture !
@timpani112 3 жыл бұрын
What a great lecture! Would recommend as a good starting point for anyone wishing to study K-theory.
@mpix-sv8ye 3 жыл бұрын
Perfect 👌