## Abstract

We prove the dynamic programming principle for uniformly nondegenerate stochastic differential games in the framework of time-homogeneous diffusion processes considered up to the first exit time from a domain. In contrast with previous results established for constant stopping times we allow arbitrary stopping times and randomized ones as well. There is no assumption about solvability of the the Isaacs equation in any sense (classical or viscosity). The zeroth-order "coefficient" and the "free" term are only assumed to be measurable in the space variable. We also prove that value functions are uniquely determined by the functions defining the corresponding Isaacs equations and thus stochastic games with the same Isaacs equation have the same value functions.

Original language | English (US) |
---|---|

Pages (from-to) | 751-783 |

Number of pages | 33 |

Journal | Probability Theory and Related Fields |

Volume | 158 |

Issue number | 3-4 |

DOIs | |

State | Published - Apr 2014 |

### Bibliographical note

Funding Information:The author was partially supported by NSF Grant DNS-1160569.

## Keywords

- Dynamic programming principle
- Isaacs equations
- Stochastic games