The Burau representation of the braid group is faithful for n = 4

(arxiv.org)

11 points by wglb1 hour ago

2 comments

  • wglb1 hour ago
    Also <a href="https:&#x2F;&#x2F;www.yahoo.com&#x2F;news&#x2F;science&#x2F;articles&#x2F;99-old-mathematician-unraveled-century-111500867.html" rel="nofollow">https:&#x2F;&#x2F;www.yahoo.com&#x2F;news&#x2F;science&#x2F;articles&#x2F;99-old-mathemati...</a>. Someone who has been at this problem for 60 years.
    • slwvx56 minutes ago
      She has a wikipedia page: <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Joan_Birman" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Joan_Birman</a>
      • axus17 minutes ago
        Nice! Her experience getting a &quot;bionic ear&quot; at age 80 was very interesting: <a href="https:&#x2F;&#x2F;www.math.columbia.edu&#x2F;~jb&#x2F;my-bionic-ear.pdf" rel="nofollow">https:&#x2F;&#x2F;www.math.columbia.edu&#x2F;~jb&#x2F;my-bionic-ear.pdf</a>
  • marysminefnuf24 minutes ago
    Birman still dropping bangers at 100 is quite something.