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Institut de Mathématiques de Marseille, UMR 7373
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Tight, non-fillable contact structures on 3-manifolds

vendredi
06
mai
2016
11h00 - 12h00
horaire FRUMAM

Aix-Marseille Université - Site St Charles
3, place Victor Hugo - case 39
13331 MARSEILLE Cedex 03

The modern development of contact geometry in 3 dimensions has seen several (due to Giroux, Wendl, Latschev and Wendl, Hutchings, and others) invariants of contact structures meant in some sense to measure non-(Stein/symplectic)-fillability of the structure. We will discuss a new approach which uses Heegaard Floer homology to define an invariant with a similar aim, but which has several desirable properties lacking in earlier approaches. This is joint with joint work with Kutluhan, Matic, and Van Horn-Morris.

Andy WAND