RT Journal Article SR 00 ID doi:10.21538/0134-4889-2016-22-2-18-27 A1 Aseev, S.M. T1 Existence of an optimal control in infinite-horizon problems with unbounded set of control constraints JF Trudy Instituta Matematiki i Mekhaniki UrO RAN YR 2016 FD 2016-04 VO 22 IS 2 SP 18 OP 27 K1 optimal control, infinite horizon, unbounded controls, existence of a solution, the Pontryagin maximum principle AB We consider a class of infinite-horizon optimal control problems with not necessarily bounded set of control constraints. Sufficient conditions for the existence of an optimal control are derived in the general nonlinear case by means of finite-horizon approximations and the tools of the Pontryagin maximum principle. Conditions guaranteeing the uniform local boundedness of optimal controls are also obtained. SN 0134-4889 LK https://pure.iiasa.ac.at/id/eprint/13995/