Geodesic
Optimal control of piecewise deterministic Markov processes: a BSDE representation of the value function
ESAIM: Control, Optimisation and Calculus of Variations, Tome 24 (2018) no. 1, pp. 311-354

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We consider an infinite-horizon discounted optimal control problem for piecewise deterministic Markov processes, where a piecewise open-loop control acts continuously on the jump dynamics and on the deterministic flow. For this class of control problems, the value function can in general be characterized as the unique viscosity solution to the corresponding Hamilton−Jacobi−Bellman equation. We prove that the value function can be represented by means of a backward stochastic differential equation (BSDE) on infinite horizon, driven by a random measure and with a sign constraint on its martingale part, for which we give existence and uniqueness results. This probabilistic representation is known as nonlinear Feynman−Kac formula. Finally we show that the constrained BSDE is related to an auxiliary dominated control problem, whose value function coincides with the value function of the original non-dominated control problem.

DOI : 10.1051/cocv/2017006
Classification : 93E20, 60H10, 60J25
Keywords: Backward stochastic differential equations, optimal control problems, piecewise deterministic Markov processes, randomization of controls, discounted cost

Bandini, Elena 1

1 
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     title = {Optimal control of piecewise deterministic {Markov} processes: a {BSDE} representation of the value function},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     pages = {311--354},
     publisher = {EDP-Sciences},
     volume = {24},
     number = {1},
     year = {2018},
     doi = {10.1051/cocv/2017006},
     mrnumber = {3843187},
     zbl = {1396.93131},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1051/cocv/2017006/}
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Bandini, Elena. Optimal control of piecewise deterministic Markov processes: a BSDE representation of the value function. ESAIM: Control, Optimisation and Calculus of Variations, Tome 24 (2018) no. 1, pp. 311-354. doi: 10.1051/cocv/2017006

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