On The Geometry Of Diffusion Operators And Stochastic Flows

On the Geometry of Diffusion Operators and Stochastic Flows

Stochastic differential equations, and Hoermander form representations of diffusion operators, can determine a linear connection associated to the underlying (sub)-Riemannian structure. This is systematically described, together with its invariants, and then exploited to discuss qualitative properties of stochastic flows, and analysis on path spaces of compact manifolds with diffusion measures. This should be useful to stochastic analysts, especially those with interests in stochastic flows, infinite dimensional analysis, or geometric analysis, and also to researchers in sub-Riemannian geometry. A basic background in differential geometry is assumed, but the construction of the connections is very direct and itself gives an intuitive and concrete introduction. Knowledge of stochastic analysis is also assumed for later chapters.

On the Geometry of Diffusion Operators and Stochastic Flows

Stochastic Processes, Physics and Geometry: New Interplays. I

A selection of 21 contributions from invited speakers treat advanced topics at the interface between mathematics and physics. Most are high-level research papers, but some overview their topics, among which are growth and saturation in random media, the maximal dissipativity of the Dirichlet operator corresponding to the Burgers equation, the square of the self-intersection local time of Brownian motion, the spectral theory of sparse potentials, and diffusions on simple configuration spaces. Additional short contributions pay tribute to Swiss-born physicist Albeverio. A second volume presents selected volunteer papers. There is no index. Annotation copyrighted by Book News, Inc., Portland, OR