Backward SDEs with constrained jumps and quasi-variational inequalities
Zhang, Jianfeng; Pham, Huyen; Ma, Jin; Kharroubi, Idris (2010), Backward SDEs with constrained jumps and quasi-variational inequalities, Annals of Probability, 38, 2, p. 794-840. http://dx.doi.org/10.1214/09-AOP496
TypeArticle accepté pour publication ou publié
Journal nameAnnals of Probability
Institute of Mathematical Statistics
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Abstract (EN)We consider a class of backward stochastic differential equations (BSDEs) driven by Brownian motion and Poisson random measure, and subject to constraints on the jump component. We prove the existence and uniqueness of the minimal solution for the BSDEs by using a penalization approach. Moreover, we show that under mild conditions the minimal solutions to these constrained BSDEs can be characterized as the unique viscosity solution of quasi-variational inequalities (QVIs), which leads to a probabilistic representation for solutions to QVIs. Such a representation in particular gives a new stochastic formula for value functions of a class of impulse control problems. As a direct consequence, this suggests a numerical scheme for the solution of such QVIs via the simulation of the penalized BSDEs.
Subjects / KeywordsBackward stochastic differential equation; jump-diffusion process; jump constraints; penalization; quasi-variational inequalities; impulse control problems; viscosity solutions
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