[CvGmt News] annuncio seminario

[Matteo Novaga]

Segnalo agli eventuali interessati che Nicolas Dirr,
dell'Universita' di Cardiff, terra' un seminario

            mercoledi' 5 novembre alle ore 17, in Aula Riunioni.

Titolo del seminario:
Asymptotics of interface evolution in random and periodic environment

Abstract:
A surface moving by mean curvature flow with a rapidly oscillating forcing
models e.g. the behaviour of a phase boundary in an impure medium.
Mathematically, the combination of rapidly varying random or periodic
coefficients and geometric evolution is challenging, with open problems
even in the periodic case. Phenomena like pinning and power laws for
effective velocities can occur, with many more interesting features in the
random case. I will sketch the state of the art and difficulties both in
the random and periodic case and introduce a simplified model, the
so-called random obstacle model