Akiva Weinberger

@akivaw

Into math. Into music. Brother of . Finding new and innovative ways to mess up. (he/him/his)

New York, NY
Vrijeme pridruživanja: siječanj 2011.

Medijski sadržaj

  1. 5. velj
    Odgovor korisniku/ci

    All good questions

  2. 5. velj
    Odgovor korisnicima

    (The orientation is important so we know which term gets an x and which gets a y. It also tells us which way to split the crossing.) Another potential source of nonuniqueness is what about two knots next to each other? For example, what about the trivial 2-link? 4/

  3. 5. velj
    Odgovor korisniku/ci

    P is a function from oriented knots and links to the reals. I've written down a property I hope P will have. x, y, and z are unspecified reals. 0 is the number 0. We don't know if there exists a P with that property, or if it's unique. 1/

  4. 5. velj

    HOMFLY. (Does the make sense without further context, or is more explanation needed?)

  5. 5. velj

    Sounds really cool. For some reason it reminds me of this song from Burkina Faso: (not entirely sure why)

  6. 4. velj
    Odgovor korisniku/ci
  7. 3. velj
    Odgovor korisniku/ci
  8. 3. velj
    Odgovor korisniku/ci

    Subtle difference in spacing.

  9. 2. velj
    Odgovor korisniku/ci
  10. 2. velj
    Odgovor korisnicima

    Indeed, according to Wikipedia:

  11. 1. velj
    Odgovor korisniku/ci

    Related: if you tie an overhand knot (aka trefoil) into a ribbon, it makes a regular pentagon

  12. 1. velj
    Odgovor korisniku/ci

    Is this like saying a group consists of objects, a group operation, an identity, and an inverse operation (rather than just the first two)?

  13. 31. sij

    And now for something completely different: which is in 3/4, but it's completely possible to make a 4/4 version of this based on the Ingonyama rhythm, and it would be _totally rad_

    Prikaži ovu nit
  14. 31. sij

    A cool cover of that song, by the way: (by )

    Prikaži ovu nit
  15. 29. sij
    Prikaži ovu nit
  16. 28. sij
    Odgovor korisnicima

    This is much more relevant. (e.g. why does Gauss not consider a proof that relies on "there exist triangles of arbitrarily large area" to be a valid proof of the fifth postulate?)

  17. 28. sij
    Odgovor korisnicima
  18. 28. sij
    Odgovor korisnicima

    Incidentally, he's Gauss's (semirelevant?) thoughts on the metaphysics of mathematics.

  19. 28. sij
    Odgovor korisniku/ci
  20. 28. sij
    Odgovor korisniku/ci

Čini se da učitavanje traje već neko vrijeme.

Twitter je možda preopterećen ili ima kratkotrajnih poteškoća u radu. Pokušajte ponovno ili potražite dodatne informacije u odjeljku Status Twittera.

    Možda bi vam se svidjelo i ovo:

    ·