Invariant Probability Distributions for Measure-Valued Diffusions

Abstract

We investigate the set of invariant probability distributions for measure-valued diffusion processes corresponding to semilinear operators of the form $u_t = L_0 u + \beta u - \alpha u^2$, where $L_0 = 1/2 \sum_{i,j=1}^d a_{i,j} \frac{\partial^2}{\partial x_i \partial x_j}+ \sum_{i=1}^d b_1\frac{\partial}{\partial x_i}$