Main themes

The study of Markov processes bring to the notions of transition probabilities, of semi-groups of operators, of resolvants and generators. For diffusions (strong continuous Markov processes) these generators are elliptic differential operators (like Laplacian), while the transition probabilities are solutions of equations with partial derivatives of a parabolic type (like the heat equation). The integrals of Feynman-Kac bring more probabilistic solutions to families of parabolic equations, while the applications to probabilities, to spectral theory and to mechanics are numerous.

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