Concordance maps in knot Floer homology

Andras Juhasz (University of Oxford)

Monday 26th October, 2015 16:00-17:00 Maths 522


I am going to discuss the maps induced on knot Floer homology by decorated concordances. These preserve the Alexander and Maslov gradings, and are always non-vanishing as they induce a morphism of the spectral sequences to Z.

Using this, we define an invariant of slice disks, and obstruct the existence of invertible concordances.

This is joint work with Marco Marengon. 

Add to your calendar

Download event information as iCalendar file (only this event)