Maximum principle for optimal control of stochastic partial differential equations

Details Maximum principle for optimal control of stochastic partial differential equations Maximum principle for optimal control of stochastic partial differential equations

2012-02-17

arxiv.org/abs/1202.4006v1

Mathematics

Probability

Scientific paper

We shall consider a stochastic maximum principle of optimal control for a control problem associated with a stochastic partial differential equations of the following type: d x(t) = (A(t) x(t) + a (t, u(t)) x(t) + b(t, u(t)) dt + [<\sigma(t, u(t)), x(t)>_K + g (t, u(t))] dM(t), x(0) = x_0 \in K, with some given predictable mappings $a, b, \sigma, g$ and a continuous martingale $M$ taking its values in a Hilbert space $K,$ while $u(\cdot)$ represents a control. The equation is also driven by a random unbounded linear operator $A(t,w), \; t \in [0,T ], $ on $K .$ We shall derive necessary conditions of optimality for this control problem without a convexity assumption on the control domain, where $u(\cdot)$ lives, and also when this control variable is allowed to enter in the martingale part of the equation.

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