Average Cost Markov Decision Processes with Weakly Continuous Transition Probabilities

  • Authors:
  • Eugene A. Feinberg;Pavlo O. Kasyanov;Nina V. Zadoianchuk

  • Affiliations:
  • Department of Applied Mathematics and Statistics, Stony Brook University, Stony Brook, New York 11794;Institute for Applied System Analysis, National Technical University of Ukraine “Kyiv Polytechnic Institute,” Kyiv, Ukraine;Institute for Applied System Analysis, National Technical University of Ukraine “Kyiv Polytechnic Institute,” Kyiv, Ukraine

  • Venue:
  • Mathematics of Operations Research
  • Year:
  • 2012

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Abstract

This paper presents sufficient conditions for the existence of stationary optimal policies for average cost Markov decision processes with Borel state and action sets and weakly continuous transition probabilities. The one-step cost functions may be unbounded, and the action sets may be noncompact. The main contributions of this paper are: (i) general sufficient conditions for the existence of stationary discount optimal and average cost optimal policies and descriptions of properties of value functions and sets of optimal actions, (ii) a sufficient condition for the average cost optimality of a stationary policy in the form of optimality inequalities, and (iii) approximations of average cost optimal actions by discount optimal actions.