Asymptotic behaviour of stochastic flows of diffeomorphisms.- Stochastic ensembles and hierarchies.- A stochastic approach to the minimum principle for the complex Monge-Amp¿ operator.- Construction of stochastic processes associated with the Boltzmann equation and its applications.- Isotropic stochastic flows and a related property of non-random potential flows.- Explosion problems for symmetric diffusion processes.- Extremal process as a substitution for "one-sided stable process with index 0".- Diffusion model of population genetics incorporating group selection, with special reference to an altruistic trait.- On laplacian operators of generalized brownian functionals.- Precise estimates for the fundamental solutions to some degenerate elliptic differential equations.- On stochastic algorithms in adaptive filtering.- Estimation theory and statistical physics.- Quantum stochastic