Dynamical Systems Seminar: Gorenstein Singularities with G_m-action and moduli spaces of holomrophic differentials
Speaker: Fei Yu (Zhejiang University) Abstract: Given a holomorphic differential on a smooth complex algebraic curve, we associate to it a Gorenstein curve singularity with G_m action via a test configuration. This construction decomposes the strata of holomorphic differentials with prescribed orders of zeros into negatively graded versal deformation spaces of such singularities, refining Pinkham’s …