Long time behavior of heat kernels of operators with unbounded drift terms
Langue
en
Article de revue
Ce document a été publié dans
Journal of Mathematical Analysis and Applications. 2011, vol. 377, p. 170-179
Elsevier
Résumé en anglais
Given a second-order elliptic operator on Rd, with bounded diffusion coefficients and unbounded drift, which is the generator of a strongly continuous semigroup on L2(Rd) represented by an integral, we study the time ...Lire la suite >
Given a second-order elliptic operator on Rd, with bounded diffusion coefficients and unbounded drift, which is the generator of a strongly continuous semigroup on L2(Rd) represented by an integral, we study the time behavior of the integral kernel and prove estimates on its decay at infinity. If the diffusion coefficients are symmetric, a local lower estimate is also proved.< Réduire
Mots clés en anglais
parabolic operators
unbounded drifts
heat kernels
Origine
Importé de halUnités de recherche