University of Cambridge > Talks.cam > Differential Geometry and Topology Seminar > Naturality of Heegaard Floer homology

Naturality of Heegaard Floer homology

Add to your list(s) Download to your calendar using vCal

  • UserAndras Juhasz, Imperial College
  • ClockWednesday 28 November 2012, 16:00-17:00
  • HouseMR13.

If you have a question about this talk, please contact Ivan Smith.

Previously, the Heegaard Floer invariants of 3-manifolds and links have only been defined up to isomorphism. This suffices for many applications, but to be able to talk about diffeomorphism or cobordism maps on such groups one needs a functorial construction. We will provide the missing ingredient for functoriality, and define the action of the based mapping class group. Our approach relies on the bifurcation analysis of 2-parameter families of gradient vector fields. This is joint work with Dylan Thurston and Peter Ozsváth.

This talk is part of the Differential Geometry and Topology Seminar series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.

 

© 2006-2024 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity