Четверг, 26 апреля 2012 г.
16:00, НМУ, конференц-зал
AUTOMORPHISMS OF RATIONAL SURFACES
Лектор - Serge Cantat (Universite de Rennes)
A rational surface X is a projective surface which is birationally equivalent to the projective plane (examples are obtained by blowing up a finite number of points of the projective plane). The group of all regular and invertible transformations f:X -> X is the group of automorphisms of X. There are interesting questions regarding this group: For which surfaces is it infinite? How big can it be? What is the typical dynamical behaviour of automorphisms? ... I shall describe some of the main examples, together with a few open questions.
| 23.04.2012 | Петров Леонид Александрович |