Ergodic Properties of Reaction-diffusion Equations Perturbed by a Degenerate Multiplicative Noise.

We extend to a more general class of diffusion coefficients the results proved in the previous work [6] on uniqueness, ergodicity and strongly mixing property of the invariant measure for some stochastic reaction-diffusion equations, in which the diffusion term is possibly vanishing and the deterministic part is not asymptotically stable. We obtain our results by random time changes and some comparison arguments with Bessel processes. [ABSTRACT FROM AUTHOR]