presso la Sala Conferenze "F. Tricerri" del Dipartimento di Matematica e Informatica "U. DINI"
Il Prof. Nessim Sibony
(Université Paris-Sud - Orsay)
terrà una conferenza dal titolo:
"Densities for positive closed currents and application to equidistribution of periodic points"
Abstract:
The theory of densities for positive closed currents is an extension of the notion of Lelong numbers. Densities are cohomology classes attached to the tangent limits of closed currents along sub varieties. They live in the normal bundle to the subvariety. The notion is useful in order to develop an intersection theory. As an application we show the following equidistribution result. Let f be a regular (Hénon type) polynomial automorphism in $C^k$. the saddle periodic points for f equidistribute towards the equilibrium measure for f. This is joint work with T.C Dinh