Mean-field;
nonlinear Markov chain;
backward SDEs;
optimal control;
zero-sum game;
saddle point;
stochastic maximum principle;
thinning;
LARGE DEVIATIONS;
LARGE NUMBERS;
EXISTENCE;
SYSTEMS;
BSDES;
LAW;
D O I:
10.3934/mcrf.2019026
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
We establish existence of Markov chains of mean-field type with unbounded jump intensities by means of a fixed point argument using the total variation distance. We further show existence of nearly-optimal controls and, using a Markov chain backward SDE approach, we suggest conditions for existence of an optimal control and a saddle-point for respectively a control problem and a zero-sum differential game associated with payoff functionals of mean-field type, under dynamics driven by such Markov chains of mean-field type.