Abstract
Existence of a viscosity solution to a non-local Hamilton-Jacobi-Bellman equation in a Hilbert space is established. We prove that the value function of an associated stochastic control problem is a viscosity solution. We provide a complete proof of the Dynamic Programming Principle for the stochastic control problem. We also illustrate the theory with Bellman equations associated to a controlled wave equation and controlled Musiela equation of mathematical finance both perturbed by Lévy processes.
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Święch, A., Zabczyk, J. Integro-PDE in Hilbert Spaces: Existence of Viscosity Solutions. Potential Anal 45, 703–736 (2016). https://doi.org/10.1007/s11118-016-9563-0
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DOI: https://doi.org/10.1007/s11118-016-9563-0