13 - The Stochastic Heat Equation with a Fractional-Colored Noise: Existence of the Solution - Raluca BALAN

In this talk we consider the stochastic heat equation in , with vanishing initial conditions, driven by a Gaussian noise which is fractional in time, with Hurst index , and colored in space, with spatial covariance given by a function . Our main result gives the necessary and sufficient condition on for the existence of the process solution. When is the Riesz kernel of order this condition is , which is a relaxation of the condition encountered when the noise is white in space. When is the Bessel kernel or the heat kernel, the condition remains . This a joint work with C. Tudor. Raluca BALAN. University of Ottawa. Document associé : support de présentation : http://epi.univ-paris1.fr/servlet/com.univ.collaboratif.utils.LectureFichiergw?CODE_FICHIER=1182790115349 (pdf) Bande son disponible au format mp3 Durée : 28 mn