© 1987 by Institute of Mathematics and its Applications
Existence Theory for a Stochastic Bolza Problem
Department of Mathematics, University of British Columbia Vancouver V6T 1Y4, Canada
The direct method is used to prove the existence of optimal open-loop controls for stochastic optimal control problems in Bolza form. Instead of requiring the control set to be compact, as previous authors have done, we impose a superquadratic growth condition on the running cost. Degeneracy of the diffusion coefficient is allowed by this approachin fact, the main result reduces to a well known deterministic theorem when the diffusion coefficient is zero.