Mapping class group relations, Stein fillings, and planar open book decompositions
Mapping class group relations, Stein fillings, and planar open book decompositions
The aim of this paper is to use mapping class group relations to approach the `geography' problem for Stein fillings of a contact 3-manifold. In particular, we adapt a formula of Endo and Nagami so as to calculate the signature of such fillings as a sum of the signatures of …