Seminar by Michele Graffeo

[PERRONI FABIO]

Dear all,
It is a pleasure to announce our next seminar at the University of Trieste held by Michele Graffeo (SISSA).

Title: Integrable systems and the Cremona-cubes group

Abstract: The standard Cremona transformation is a classical object in algebraic geometry. In a joint work with G. Gubbiotti (University of Milan), we studied the algebraic entropy and the invariants of birational maps of the projective 3-space defined as the composition of the standard Cremona transformation with some special projectivities. Precisely, we consider projectivities acting on 12 points in Reye configuration. These kind of maps  appear for instance as the Kahan–Hirota–Kimura discretization of the Euler top. In my seminar I will explain how such results can be obtained using classical techniques from algebraic geometry. If time permits, I will discuss some higher dimensional generalizations of this construction (joint work with G. Gubbiotti and M. Weinreich (Harvard)).



When: Wednesday 13 March, 15:00.
Venue: Dipartimento di Matematica Informatica e Geoscienze Sala Seminario, III floor, via Valerio 12/1.

Everyone is cordially invited.
Fabio Perroni