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The stochastic maximum principle in optimal control of degenerate diffusions with non-smooth coefficients

  • Farid Chighoub , Boualem Djehiche and Brahim Mezerdi
Published/Copyright: May 29, 2009
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Random Operators and Stochastic Equations
From the journal Volume 17 Issue 1

Abstract

For a controlled stochastic differential equation with a finite horizon cost functional, a necessary condition for optimal control of degenerate diffusions with non-smooth coefficients is derived. The main idea is to show that the SDE admits a unique linearized version interpreted as its distributional derivative with respect to the initial condition. We use a technique of Bouleau–Hirsch on absolute continuity of probability measures in order to define the adjoint process on an extension of the initial probability space.

Received: 2008-04-02
Published Online: 2009-05-29
Published in Print: 2009-May

© de Gruyter 2009

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