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Jump SDEs and the Study of Their Densities - A Self-Study Book (Paperback, 1st ed. 2019)
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Jump SDEs and the Study of Their Densities - A Self-Study Book (Paperback, 1st ed. 2019)
Series: Universitext
Expected to ship within 10 - 15 working days
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The present book deals with a streamlined presentation of Levy
processes and their densities. It is directed at advanced
undergraduates who have already completed a basic probability
course. Poisson random variables, exponential random variables, and
the introduction of Poisson processes are presented first, followed
by the introduction of Poisson random measures in a simple case.
With these tools the reader proceeds gradually to compound Poisson
processes, finite variation Levy processes and finally
one-dimensional stable cases. This step-by-step progression guides
the reader into the construction and study of the properties of
general Levy processes with no Brownian component. In particular,
in each case the corresponding Poisson random measure, the
corresponding stochastic integral, and the corresponding stochastic
differential equations (SDEs) are provided. The second part of the
book introduces the tools of the integration by parts formula for
jump processes in basic settings and first gradually provides the
integration by parts formula in finite-dimensional spaces and gives
a formula in infinite dimensions. These are then applied to
stochastic differential equations in order to determine the
existence and some properties of their densities. As examples,
instances of the calculations of the Greeks in financial models
with jumps are shown. The final chapter is devoted to the Boltzmann
equation.
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