期刊
PROCEEDINGS OF THE ROYAL SOCIETY OF EDINBURGH SECTION A-MATHEMATICS
卷 151, 期 4, 页码 1305-1330出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/prm.2020.61
关键词
Principal eigenvalue; semilinear differential equations; stochastic representation; policy improvement
资金
- National Science Foundation [DMS-1715210]
- Army Research Office [W911NF-17-1-001]
- DST-SERB [EMR/2016/004810, MTR/2018/000028]
This article discusses the ergodic risk-sensitive control problem for a class of multidimensional controlled diffusions on the entire space. The study includes minimization and maximization problems under different stability assumptions and a near-monotone assumption on the running cost. It establishes the convergence of the policy improvement algorithm for these models and presents a more general result on the equilibrium's region of attraction.
In this article we consider the ergodic risk-sensitive control problem for a large class of multidimensional controlled diffusions on the whole space. We study the minimization and maximization problems under either a blanket stability hypothesis, or a near-monotone assumption on the running cost. We establish the convergence of the policy improvement algorithm for these models. We also present a more general result concerning the region of attraction of the equilibrium of the algorithm.
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