zamzawed
zamzawed
  • Видео 1
  • Просмотров 54 146
What's a representation? An intro to modern math's magical machinery | #SoME2
This video is an introduction to the representation theory of finite groups. It is pretty dense, but I did my best not to include much heavy mathematics. I'll leave some links below for some more background on several of the topics in the video. None of these are necessary to understand the video, but they're definitely helpful and a good place to branch out.
3B1B's intro to group theory: ruclips.net/video/mH0oCDa74tE/видео.html
3B1B's Intro to linear algebra: ruclips.net/video/fNk_zzaMoSs/видео.html
Borcherds' representation theory (advanced): ruclips.net/video/Q9OsEZV5YX8/видео.html
Quanta vid on Langlands: ruclips.net/video/_bJeKUosqoY/видео.html
This video was made in large part for 3Blue...
Просмотров: 54 166

Видео

Комментарии

  • @lujainn.6567
    @lujainn.6567 6 дней назад

    Is there a typo @ 8:2, the matrix should have 1 not -1 in the bottom left entry or

  • @readjordan2257
    @readjordan2257 21 день назад

    yeahhh, i like this style.

  • @stavroschris3361
    @stavroschris3361 22 дня назад

    this is an amazing video. "real-time" learning is extremely educational

  • @TheOneMaddin
    @TheOneMaddin 25 дней назад

    5:30 V is not R or C. V is the vector space. So at least R^n or so.

  • @TheOneMaddin
    @TheOneMaddin 25 дней назад

    You SEVERELY underestimate the mental effort necessary to digest even a single one of the definitions you give. Eg groups. No way a viewer with not background in calculus and trigonometry will get this without pondering it for some weeks and reading other sources. Well I clicked on a video which claims to explain rep theory in 20-ish minutes assuming no background. I knew it was doomed to fail.

    • @kapoioBCS
      @kapoioBCS 25 дней назад

      You cannot understand Representation Theory without basic undergraduate math training. That is the simple truth.

  • @coleyoutubechannel
    @coleyoutubechannel Месяц назад

    'seems like its a legit paper... it's in the annals'.... lmao

  • @user-em4vq5cy4x
    @user-em4vq5cy4x 2 месяца назад

    feel like everyone knows this shit but its impossible to put it into words

  • @user-em4vq5cy4x
    @user-em4vq5cy4x 2 месяца назад

    the prequel to pascals triangle

  • @sergeydenisov15
    @sergeydenisov15 2 месяца назад

    excellent intro, my compliments. pity that you did not continue further into the topic.

  • @majidaldo
    @majidaldo 2 месяца назад

    Thumbs up

  • @EccentricTuber
    @EccentricTuber 4 месяца назад

    14:53 I'm crying "No I will not explain"

  • @goulchat1
    @goulchat1 4 месяца назад

    Excellent job!!!

  • @thedownzguy
    @thedownzguy 4 месяца назад

    Is the bird okay?

  • @mattschoolfield4776
    @mattschoolfield4776 6 месяцев назад

    Great video! Looking forward to many more

  • @mikewasinger9029
    @mikewasinger9029 6 месяцев назад

    This was just right for me. Thanks for the good intro to this subject.

  • @sounakkundu6115
    @sounakkundu6115 6 месяцев назад

    The way this creator has begun to define his channel is hinting me towards an isomorphism to greatness.

  • @keeperofthelight9681
    @keeperofthelight9681 9 месяцев назад

    You got 41 k views on your 1st video

  • @themonstergroups
    @themonstergroups 9 месяцев назад

    This is great, I've had a hard time coming to understand group theory, and your video is one of the best I've seen.

  • @edgarmorbos9728
    @edgarmorbos9728 10 месяцев назад

    post more videos please!!!

  • @peterhunt1968
    @peterhunt1968 10 месяцев назад

    This is a cool video. You explain things in a way that I can actually understand. Thanks

  • @peterwolf8092
    @peterwolf8092 11 месяцев назад

    Please do more on the fermat thing. 😃

  • @lionardo
    @lionardo 11 месяцев назад

    so the idea of langlands is to have representation of different types of numbers into geometries?

  • @-minushyphen1two379
    @-minushyphen1two379 Год назад

    This video was what made me start studying abstract algebra! Thanks for making it!

  • @omargaber3122
    @omargaber3122 Год назад

    Actually, this video is wonderful, and I thank you very much for this effort, but I expected more, and I am still waiting for more of your videos, I know that it is very difficult, so thank you

  • @omargaber3122
    @omargaber3122 Год назад

    Me-: I finally found a video on RUclips that explains the FLT proof My mind:_ It's been 20 minutes and there are only 2 minutes left. Me-: I just have to be patient, maybe he will explain the proof in the last two minutes. Video -: And this was what the arrow you see in the proof means hhhhhhhhhhhhh

  • @ggobbler
    @ggobbler Год назад

    42

  • @jaroslavzukov2719
    @jaroslavzukov2719 Год назад

    That was basically my linear algebra 1 course))

  • @ryanlangman4266
    @ryanlangman4266 Год назад

    Good explanation, but I really wish you had mentioned that groups are required to be associative. It’s perhaps their most important property. Associativity is the only reason you’re allowed to think of the operation as a transformation so that representation theory makes sense. What you described is technically called a loop.

  • @fable4315
    @fable4315 Год назад

    Maybe a technical detail you could mention is, that a vector space is more abstract and can be fairly easy defined by a few axioms, or even from the group axioms. And R and C are not the vector space V, they can be the fields over which the scalar multiplication is defined.

  • @PowerhouseCell
    @PowerhouseCell Год назад

    This was a brilliant video - super engaging! As an educational video creator myself, I understand how much effort must have been put into this. Liked and subscribed, always enjoy supporting fellow small creators :)

  • @ivitta1966
    @ivitta1966 Год назад

    Wonderful!

  • @hx11hx1
    @hx11hx1 Год назад

    cool good job

  • @torrentails
    @torrentails Год назад

    The low thumps in the audio make the video really hard to concentrate on

  • @jinyunghong
    @jinyunghong Год назад

    Mind blowing 😮

  • @pra.
    @pra. Год назад

    Amazing, it's great how you emphasize the importance of maps to more than just functions

  • @gaboqv
    @gaboqv Год назад

    Although maybe not the most rigorous treatment you maintained my attention and attracted me to a subject that I thought would be a lot more complex than it is, at least the gist of it.

  • @juanramonvazquez3212
    @juanramonvazquez3212 Год назад

    Amazing first video, i am already introduced in the topic, but i can still feel how good of an introduction this video is, thank you for this educational piece.

  • @matus9
    @matus9 Год назад

    How can we find the result matrix from the input group?

  • @padraiggluck2980
    @padraiggluck2980 Год назад

    👍

  • @thatkindcoder7510
    @thatkindcoder7510 Год назад

    What’s the link between group homomorphisms and topological homeomorphisms? I mean they sound similar, and one professor on yt described homeomorphisms in the same way you described homomorphisms, which is that they allow you to deform a difficult problem into a simpler one, and solve the simple case instead.

  • @taghreednaser1886
    @taghreednaser1886 Год назад

    That is very nice ..very important..very clear.. Thank you

  • @juanroldan529
    @juanroldan529 Год назад

    Thanks for the video man. I saw some comments pointomg out at your mistakes, I just want you to know that it's not that big of a deal for the uneducated public. I personally lack a formal education on this topic (only lineal algebra) and now I feel like I can come to understand it better with self study. This video values clarity over rigor and I'm thankful for that, it's not supposed to be a science article after all.

  • @YTSPoster
    @YTSPoster Год назад

    Nice

  • @rgbplaza5945
    @rgbplaza5945 Год назад

    I'm a CS student and I agree with the passing remark... they never push us hard enough.

  • @mikej9062
    @mikej9062 Год назад

    I like the format: dry, informative, good clear illustrations.

  • @markwrede8878
    @markwrede8878 Год назад

    There is a general phi function for each prime with a novel sequential difference. The square root of the prime, plus a counting number, divided by that sequential difference. For instance phi, as the square root of 5 is the first twin, is divided by 2, returning a cycle of two mantissas. Eleven is the first square prime and its square root, plus a counting number, when divided by 4, yields a repeating cycle of four mantissas. Likewise for 29, the first sexy prime and its recurring cycle of six mantissas. Despite having an unknown finite limit, it is guaranteed that sequential differences among primes climb to at least seventy million, we find there would be so many mantissas in its cycle, too. We can see the universal matrix producing the self-similarity to manifest integer abundances out of this complex array.

  • @DB-nl9xw
    @DB-nl9xw Год назад

    great content. i like how you are able to simplify such complex subject into something easy to digest.

  • @ericyang5237
    @ericyang5237 Год назад

    Don't know why youtube pushed this video to me, maybe because I watched a bunch of videos on AdS/CFT Duality, which could be a good example of representation.

  • @jrwarfare
    @jrwarfare Год назад

    Great video.

  • @smitmehta1545
    @smitmehta1545 Год назад

    Yantra Chakshur Vidya