Superprocess

An -superprocess, , is a stochastic process on that is usually constructed as a special limit of branching diffusion where the branching mechanism is given by its factorial moment generating function:

and the spatial motion of individual particles is given by the -symmetric stable process with infinitesimal generator .

The case corresponds to standard Brownian motion and the -superprocess is called the Dawson-Watanabe superprocess or super-Brownian motion.

One of the most important properties of superprocesses is that they are intimately connected with certain nonlinear partial differential equations. The simplest such equation is

References

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.