Geometry/Physics Seminar

Title: Pre-talk: Finite-type knot invariants and their generalizations
Speaker: Robin Koytcheff
Speaker Info: Brown University
Brief Description:
Special Note:

Finite-type knot invariants, originally developed by Vassiliev, are an important class of invariants in that they conjecturally approximate all knot invariants and hence separate knots. I will describe them in elementary, purely combinatorial terms with plenty of pictures. I will then discuss the configuration space integrals of Bott and Taubes, which provide one way of constructing all Vassiliev invariants. These integrals have more generally been used to construct real cohomology classes in spaces of knots.
Date: Thursday, October 07, 2010
Time: 11:00am
Where: Lunt 105
Contact Person: John Francis
Contact email: jnkf@math.northwestern.edu
Contact Phone:
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