Título: Decadimento uniforme per equazioni integro-differenziali lineari di Volterra
Autores: Gatti, Stefania; Università di Modena - Reggio Emilia
Fecha: 2011-12-31
Publicador: Bruno Pini Mathematical Analysis Seminar
Fuente:

Tipo: info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion


Tema: No aplica
Descripción: This talk is devoted to some recent results concerning the exponential and the polynomial decays of the energy associated with a linear Volterra integro-differential equation of hyperbolic type in a Hilbert space, which is an abstract version of the equation describing the motion of a linearly viscoelastic solid occupying a (bounded) volume at rest.We provide sufficient conditions for the decay to hold, without invoking differential inequalities involving the convolution kernel. A similar analysis is carried on in the whole N-dimensional real space, although both the polynomial and the exponential decay of the memory kernel lead to a polynomial decay of the energy, with a rate influenced by the space dimension N. These results are contained in two joint papers with Monica Conti and Vittorino Pata (Politecnico di Milano).
Idioma: Italiano