Complex analysis: Zeta function functional equation

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  • เผยแพร่เมื่อ 15 ก.ย. 2024

ความคิดเห็น • 18

  • @abhinavnatarajan4180
    @abhinavnatarajan4180 3 ปีที่แล้ว +32

    "If I don't tell you which way I'm going around the contour you can't catch my sign errors" lol

  • @gunhasirac
    @gunhasirac 2 ปีที่แล้ว +11

    One of the best thing about this channel is knowing one of the greatest mathematicians also get confused with signs and some definition often not even trying to hide it. Best respect.

  • @indiscernables
    @indiscernables 3 ปีที่แล้ว +16

    This really is the best math channel out there now. We are so lucky.
    (And Borcherds cannot but be pretty hilarious at times. Idkw, but accidental comic relief is so much more satisifying than all the people out there writing scripts.)

  • @brian8507
    @brian8507 3 ปีที่แล้ว +21

    You have quickly risen to my favorite math channel. Top notch content bruh!!!

  • @theflaggeddragon9472
    @theflaggeddragon9472 3 ปีที่แล้ว +8

    Thank you for your explanations of the contours. I got totally lost reading Edward's "Riemann's zeta function" for this exact reason.

  • @ethanjahan780
    @ethanjahan780 2 ปีที่แล้ว +1

    I love how it's not at all explained rigorously, but still exact

  • @ricardoa70
    @ricardoa70 2 ปีที่แล้ว +2

    Profwssor, if I am not mistaking, this is not a Bromwich contour (which is used in inverse Laplace) but a Hankel contour.

  • @ricardoa70
    @ricardoa70 2 ปีที่แล้ว +3

    How do you reconcile the fact that for the integral over the small circle to vanish Re(s)>0 and later for the integral over the big arc to vanish Re(s)

  • @kharnakcrux2650
    @kharnakcrux2650 ปีที่แล้ว

    This fascinated me years ago, when i was able to relate the Sine function in terms of reflections of Gamma and Zeta. Creepy almost... that in a way, prime numbers are a subtle hidden element in the Trig functions.

  • @stigenbeat568
    @stigenbeat568 ปีที่แล้ว

    WE LOVE YOU RICHARDS

  • @Salmanul_
    @Salmanul_ 3 ปีที่แล้ว +2

    I feel confused, I keep getting sign errors or are there sign errors in the video?

    • @brian8507
      @brian8507 3 ปีที่แล้ว +7

      Probably both

    • @valeriobertoncello1809
      @valeriobertoncello1809 2 หลายเดือนก่อน

      He did say preemptively that he gets the sign wrong 50% of the times 😂

  • @Sharpgamingvideos
    @Sharpgamingvideos 3 ปีที่แล้ว +1

    Awesome

  • @uy-ge3dm
    @uy-ge3dm 3 ปีที่แล้ว +1

    At 6:55 should the fraction be equal to the geometric series 1 + e^(-z) + e^(-2z) + ... ? Did you forget the 1 or does it not matter

    • @diribigal
      @diribigal 3 ปีที่แล้ว +2

      Since there's no 1 term, we have e^(-z)/(1-e^(-z)) which becomes the written 1/(e^z-1) when you multiply by 1 in the form e^z/e^z.

    • @uy-ge3dm
      @uy-ge3dm 3 ปีที่แล้ว

      @@diribigal Ah, I see, thank you. I didn't see that negative sign.

  • @migarsormrapophis2755
    @migarsormrapophis2755 3 ปีที่แล้ว +1

    yeee