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Xudong Zheng : Adjoint linear systems on algebraic surfaces II

Posted by Xudong Zheng , part of the Graduate Algebraic Geometry Seminar.

At
Sept. 10, 2014, 2 p.m.
In
SEO 712
Abstract
This is the second part of the talk on adjoint linear systems on surfaces, in characteristic $p > 0$. In circumventing the classical vanishing theorems and Bogomolov's inequality on rank 2 vector bundles in characteristic zero, we briefly introduce the construction of Ekedahl and Shepherd-Barron on purely inseparable degree $p$ coverings.