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On Stein Fillings of a Contact 3-Manifold
Geometry/Topology| Speaker: | Rostislav Matveyev, UC Davis |
| Location: | 693 Kerr |
| Start time: | Wed, May 1 2002, 4:10PM |
Description
I would like to address a question whether there is an a priori bound
on the topology (Betti numbers, for example) of a Stein filling of a
given contact 3-manifold. This reduces to a question of existence of a
quasi-homomorphism on the mapping class group of an oriented surface
with nonempty boundary, satisfying some additional conditions.
This is a work in progress.