  A Walsh diffusion on Euclidean space moves along each ray from the origin, as
a solution to a stochastic differential equation with certain drift and
diffusion coefficients, as long as it stays away from the origin. As it hits
the origin, it instantaneously chooses a new direction according to a given
probability law, called the spinning measure. A special example is a
real-valued diffusion with skew reflections at the origin. This process
continuously (in the weak sense) depends on the spinning measure. We determine
a stationary measure for such process, explore long-term convergence to this
distribution and establish an explicit rate of exponential convergence.
