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Topology/Geometry Seminar

A flexible construction of equivariant Floer cohomology

Location:  Hill 525
Date & time: Thursday, 28 January 2016 at 2:00PM - 2:11PM

Kristen Hendricks, UCLA: Abstract: In the past few years, equivariant Floer cohomology has been used to construct many spectral sequences between Floer-type invariants of three-manifolds and knots. We will give an alternative formulation of equivariant Lagrangian Floer cohomology, which can be used to show several of these spectral sequences are invariants of their topological input data and~or explicitly computable, and can also be applied to define new equivariant versions of several other Floer-type invariants. As an application, we construct a new knot concordance invariant which appears to be distinct from other concordance invariants from Floer theory. This is joint work with R. Lipshitz and S. Sarkar.

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Department of Mathematics

Department of Mathematics
Rutgers University
Hill Center - Busch Campus
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