Topological Invariants and Moduli Spaces of Gorenstein Quasi-Homogeneous Surface Singularities

Abstract

We describe all connected components of the space of hyperbolic Gorenstein quasi-homogeneous surface singularities. We prove that any connected component is homeomorphic to a quotient of R^d by a discrete group.

30 pages, IHES preprint M/10/29; v2: minor changes, typos corrected