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Stochastic Integration by Parts and Functional Itô Calculus
The notes of the course by Vlad Bally are co-authored with her collaborator Lucia Caramellino. They develop integration by parts formulas in an abstract
setting, extending Malliavin’s work on abstract Wiener spaces, and thereby being
applicable to prove absolute continuity for a broad class of random vectors. Properties like regularity of the density, estimates of the tails, and approximation of
densities in the total variation norm are considered. The last part of the notes is
devoted to introducing a method to prove existence of density based on interpolation spaces. Examples either not covered by Malliavin’s approach or requiring less
regularity are in the scope of its applications.
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