The embedded contact homology of nontrivial circle bundles over Riemann surfaces
- Author(s): Farris, David Michael
- Advisor(s): Hutchings, Michael
- et al.
The embedded contact homology (ECH) of a 3-manifold Y is a topological invariant defined using a contact form on Y which counts certain pseudoholomorphic curves in its symplectization. We compute the ECH of nontrivial circle bundles over Riemann surfaces.