Statistics Seminars 2019
Martedì 12 marzo 2019 ore 10
Aula II, Dipartimento di Scienze Statistiche, piano terra
"BSDEs driven by a general random measure and optimal control for piecewise deterministic Markov processes"
Dott.ssa Elena Bandini, Università degli Studi di Milano-Bicocca
Abstract: We consider an optimal control problem for piecewise deterministic Markov processes (PDMP) on a bounded state space. Here a pair of controls acts continuously on the deterministic flow and on the transition measure describing the jump dynamics of the process. For this class of control problems, the value function can be characterized as the unique viscosity solution to the corresponding integro-differential Hamilton-Jacobi-Bellman equation with a non-local type boundary condition. We are able to provide a probabilistic representation for the value function in terms of a suitable backward stochastic differential equation, known as nonlinear Feynman-Kac formula. The jump mechanism from the boundary entails the presence of predictable jumps in the PDMP dynamics, so that the associated BSDE turns out to be driven by a random measure with predictable jumps. Existence and uniqueness results for such a class of equations are non-trivial and are related to recent works on well-posedness for BSDEs driven by non quasi-left-continuous random measures"
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Alberto Lanconelli Dipartimento di Scienze Statistiche "Paolo Fortunati" Alma Mater Studiorum - Università di Bologna