Stochastic parallel displacement.- Diffusion processes in bounded domains and singular perturbation problems for variational inequalities with Neumann boundary conditions.- Elliptic estimates and diffusions in Riemannian geometry and complex analysis.- Stochastic differentials and quasi-standard random variables.- A random product of markovian semi-groups of operators.- Large deviations for Markov processes and the asymptotic evaluation of certain Markov process expectations for large times.- Random evolutions.- An application of branching random fields to genetics.- Relativistic brownian motion.- Asymptotics and limit theorems for the linearized boltzmann equation.- Dual multiplicative operator functionals.