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1995 | Buch

The Malliavin Calculus and Related Topics

verfasst von: David Nualart

Verlag: Springer New York

Buchreihe : Probability and its Applications

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Über dieses Buch

The origin of this book lies in an invitation to give a series of lectures on Malliavin calculus at the Probability Seminar of Venezuela, in April 1985. The contents of these lectures were published in Spanish in [176]. Later these notes were completed and improved in two courses on Malliavin cal­ culus given at the University of California at Irvine in 1986 and at Ecole Polytechnique Federale de Lausanne in 1989. The contents of these courses correspond to the material presented in Chapters 1 and 2 of this book. Chapter 3 deals with the anticipating stochastic calculus and it was de­ veloped from our collaboration with Moshe Zakai and Etienne Pardoux. The series of lectures given at the Eighth Chilean Winter School in Prob­ ability and Statistics, at Santiago de Chile, in July 1989, allowed us to write a pedagogical approach to the anticipating calculus which is the basis of Chapter 3. Chapter 4 deals with the nonlinear transformations of the Wiener measure and their applications to the study of the Markov property for solutions to stochastic differential equations with boundary conditions.

Inhaltsverzeichnis

Frontmatter
Introduction
Abstract
The Malliavin calculus (also known as the stochastic calculus of variations) is an infinite-dimensional differential calculus on the Wiener space. It is tailored to investigate regularity properties of the law of Wiener functionals such as solutions of stochastic differential equations. This theory was initiated by Malliavin and further developed by Stroock, Bismut, Watanabe, and others. The original motivation, and the most important application of this theory, has been to provide a probabilistic proof of Hörmander’s “sum of squares” theorem.
David Nualart
1. Analysis on the Wiener space
Abstract
In this chapter we study the differential calculus on a Gaussian space. That is, we introduce the derivative operator and the associated Sobolev spaces of weakly differentiable random variables. Then we prove the equivalence of norms established by Meyer and discuss the relationship between the basic differential operators: the derivative operator, its adjoint (which is usually called the Skorohod integral), and the Ornstein-Uhlenbeck operator.
David Nualart
2. Smoothness of probability laws
Abstract
In this chapter we present some general criteria for the absolute continuity and regularity of the density of random vectors defined on a Gaussian probability space. These general criteria will be applied to the solutions of stochastic differential equations and stochastic partial differential equations driven by a space-time white noise.
David Nualart
3. Anticipating stochastic calculus
Abstract
As we have seen in Chapter 2, the Skorohod integral is an extension of the Itô integral that allows us to integrate stochastic processes that are not necessarily adapted to the Brownian motion. The adaptability assumption is replaced by some regularity condition. It is possible to develop a stochastic calculus for the Skorohod integral which is similar in some aspects to the classical Itô calculus. In this chapter we present the fundamental facts about this stochastic calculus, and we also discuss other approaches to the problem of constructing stochastic integrals for nonadapted processes (approximation by Riemann sums, development in a basis of L2 ([0,1]), substitution methods). The last section discusses noncausal stochastic differential equations formulated using anticipating stochastic integrals.
David Nualart
4. Transformations of the Wiener measure
Abstract
In this chapter we discuss different extensions of the classical Girsanov theorem to the case of a transformation of the Brownian motion induced by a nonadapted process. This generalized version of Girsanov’s theorem will be applied to study the Markov property of solutions to stochastic differential equations with boundary conditions.
David Nualart
Backmatter
Metadaten
Titel
The Malliavin Calculus and Related Topics
verfasst von
David Nualart
Copyright-Jahr
1995
Verlag
Springer New York
Electronic ISBN
978-1-4757-2437-0
Print ISBN
978-1-4757-2439-4
DOI
https://doi.org/10.1007/978-1-4757-2437-0