This paper studies convex stochastic dynamic team problems with finite and infinite time horizons under decentralized information structures. First, we introduce two notions called exchangeable teams symmetric We show that in an optimal policy exhibits a symmetry structure. give characterization for such symmetrically general class of mild conditional independence condition. In addition, throug...

We study a repairable system with Markovian deterioration and partial repair options, carried out at fixed times n = 1, 2, ... and look for optimal strategies under certain conditions. Two optimality criteria are considered: expected discounted cost and long-run average cost. Douer and Yechiali found conditions under which a policy in the class of generalized control limit policies is optimal. ...