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GGT Seminar: Knot invariants from plane Floer homology

Event Type
Seminar/Symposium
Sponsor
Department of Mathematics
Location
Altgeld 143
Date
Apr 25, 2024   11:00 am  
Speaker
Minh Nguyen (Wash U)
Contact
Jake Rasmussen
Views
31
Originating Calendar
Groups, Geometry, and Topology Calendar

Abstract: Plane Floer homology (PFH) is an invariant of 3-manifolds defined using abelian Yang-Mills gauge theory. In Daemiā€™s previous work, it was shown that PFH gave rise to several knot invariants; the strongest of which is a filtered chain complex that recovers odd Khovanov homology. There is also an equivariant aspect of PFH given by the complex conjugation action on the chain complex. In this talk, we will give a brief description of the equivariant PFH (PFH^{eq}). From PFH^{eq}, we will derive a family of knot concordance invariants that are lower bounds of the slice genus of a knot in S^3. This is a joint work with Aliakbar Daemi.


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