Categoria:
Seminari di Algebra e Geometria
Data e ora inizio evento:
Data e ora fine evento:
Aula:
Sala di Consiglio
Sede:
Dipartimento di Matematica, Sapienza Università di Roma
Speaker:
Zsolt Patakfalvi (École polytechnique fédérale de Lausanne)
Kodaira and Kawamata-Viehweg vanishing is frequently used to lift sections of adjoint
bundles, a crucial part of many arguments in the classification theory of algebraic varieties,
notably in many proofs of the Minimal Model Program. These vanishing theorems fail in
mixed characteristic situations, for example for
1.) proper, flat schemes over the p-adic numbers, or
2.) proper birational models of mixed characteristic local rings. I present a work that
remedies this situation to some extent. In particular, we are able to
a.) show Kodaira and Kawamata-Viehweg vanishing in many situations,
b.) prove the 3-dimensional Minimal Model Program for excellent schemes, and
c.) draw geometric corollaries of point b.) to the existence of the moduli space of stable
surfaces in mixed characteristic.
This is a joint work with Bhargav Bhatt, Linquan Ma, Karl Schwede, Kevin Tucker, Joe
Waldron and Jakub Witaszek.