Geometria Complessa e Geometria Differenziale
Geometria Complessa e Geometria Differenziale
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Corona surfaces and extra components in the moduli space of stable surfaces

Sönke Rollenske

created by bazzoni on 02 Mar 2021
modified on 03 May 2021

18 may 2021 -- 16:00

Geometry in Como - Online

The talk will take place on Microsoft Teams; the link will be posted here on May 17th. Please visit https://sites.google.com/site/gbazzoni/geometry-at-insubria and fill in the form if you'd like to be added to our mailing list.

Abstract.

The moduli space of stable surfaces is a modular compactification of the Giesecker moduli space of (canonical models of) projective algebraic surfaces of general type. We show that the compactification has many extra irreducible and connected components. The construction of examples is phrased in terms of a virus surface V infecting suitable non-normal Gorenstein stable surfaces and will be illustrated by many pictures.

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