Stability of delay evolution equations with stochastic perturbations

Abstract

The investigation of stability for hereditary systems is often related to the construction of Lyapunov functionals. The general method of Lyapunov functionals construction, which was proposed by V.Kolmanovskii and L.Shaikhet, is used here to investigate the stability of stochastic delay evolution equations, in particular, for stochastic partial diff erential equations. This method had already been successfully used for functional-di fferential equations, for diff erence equations with discrete time, and for di erence equations with continuous time. It is shown that the stability conditions obtained for stochastic 2D Navier-Stokes model with delays are essentially better than the known ones.