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Geometry-Topology Seminar

Thursday, April 4, 2013 - 4:30pm

Shea Vela-Vick

Louisiana State University

Location

University of Pennsylvania

DRL 4C8

First of two talks today, presented jointly with Bryn Mawr, Haverford and Temple

In recent years, Heegaard Floer theory has proven an invaluable tool for studying contact manifolds and the Legendrian and transverse knots they contain. After surveying a bit about the connections between transverse knot theory and branched coverings, I will discuss a method for defining a variant of Heegaard Floer theory for infinite cyclic covers of transverse knots in the standard contact 3-sphere. This invariant takes the form of a Z[t,t^-1]- module and generalizes one defined in joint work with Baldwin and Vertesi for transverse knots braided about open book decompositions. In this talk, I will discuss how our invariant is constructed and present some basic properties. This is joint work with Tye Lidman and Sucharit Sarkar.