June 27 (Sat)--28 (Sun), 2015 Lecture Theater (3rd floor), House of Creativity Tohoku University, Sendai, Miyagi, Japan |
Abstract
Groups have played a big role in knot theory. We show how subfactors (subalgebras
of certain von Neumann algebras) lead to unitary representations of the braid groups
and Thompson's groups F and T. All knots and links may be obtained from geometric
constructions from these groups. And
invariants of knots may be obtained as coefficients
of these representations. We include an extended introduction to von Neumann algebras
and subfactors.