Two-player zero-sum stochastic differential games with regime switching

• Autores: Shiyu Li
• Localización: Automatica: A journal of IFAC the International Federation of Automatic Control, ISSN 0005-1098, Nº. 114, 2020
• Idioma: inglés
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• Resumen

  • This paper is concerned with the two-player zero-sum stochastic differential game in a regime switching model with an infinite horizon. The state of the system is characterized by a number of diffusions coupled by a continuous-time finite-state Markov chain. Based on the dynamic programming principle (DPP), the lower and upper value functions are shown to be the unique viscosity solutions of the associated lower and upper Hamilton–Jacobi–Bellman–Isaacs (HJBI) equations, respectively. Moreover, the lower and upper value functions coincide under the Isaacs’ condition, which implies that the game admits a value. All the proofs in this paper are markedly different from those for the case when there is no regime switching.