On the structure of solutions of ergodic type Bellman equation related to risk-sensitive control

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Bellman equations of ergodic type related to risk-sensitive control are considered. We treat the case that the nonlinear term is positive quadratic form on first-order partial derivatives of solution, which includes linear exponential quadratic Gaussian control problem. In this paper we prove that the equation in general has multiple solutions. We shall specify the set of all the classical solutions and classify the solutions by a global behavior of the diffusion process associated with the given solution. The solution associated with ergodic diffusion process plays particular role. We shall also prove the uniqueness of such solution. Furthermore, the solution which gives us ergodicity is stable under perturbation of coefficients. Finally, we have a representation result for the solution corresponding to the ergodic diffusion.
Published at http://dx.doi.org/10.1214/009117905000000431 in the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)

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Probability, 60G35 (Primary) 60H30, 93E20 (Secondary)

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http://salesiana.dossiersoluciones.com/handle/123456789/109133

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0602625
 http://arxiv.org/abs/math/0602625
 Annals of Probability 2006, Vol. 34, No. 1, 284-320
 doi:10.1214/009117905000000431

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arXiv