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Topology/Geometry Seminar

Ribbon concordances and knot Floer homology

Ian Zemke (Princeton)

Location:  Hill 005
Date & time: Tuesday, 16 April 2019 at 3:30PM - 4:30PM

Abstract: A ribbon concordance between two knots is a concordance with only index 0 and 1 handles. In this talk, we will show that the map induced by a ribbon concordance on knot Floer homology is an injection. A corollary is the monotonicity of the Seifert genus under ribbon concordance.

If time permits, we will describe some additional results concerning ribbon concordances which are joint work with Maggie Miller and Andras Juhasz.