Videos

Synchronization in stochastic pde systems

Presenter
October 24, 2012
Keywords:
  • Partial differential equations
MSC:
  • 35R15
Abstract
We first consider a system of semilinear parabolic stochastic partial differential equations with additive space-time noise on the union of thin bounded tubular domains with interaction via interface and give conditions which guarantee synchronized behaviour of solutions at the level of pullback attractors. Moreover, in the case of nondegenerate noise we obtain stronger synchronization phenomena in comparison with analogous results in the deterministic case. Then we deal with an abstract system of two coupled nonlinear stochastic (infinite dimensional) equations subjected to additive white noise type process. This kind of systems may describe various interaction phenomena in a continuum random medium. Under suitable conditions we prove the existence of an exponentially attracting random invariant manifold for the coupled system which means that we can observe (nonlinear) master-slave synchronization phenomena in the coupled system. Several examples from Mathematical Physics are discussed. Partially based on joint results with T. Caraballo, P. E. Kloeden, and B. Schmalfuss.