@Article{Duncan2017, author = "Duncan, Tyrone E. and Pasik-Duncan, Bozenna", title = "A direct approach to linear-quadratic stochastic control", journal = "Opuscula Math.", year = "2017", volume = "37", number = "6", pages = "821--827", doi = "http://dx.doi.org/10.7494/OpMath.2017.37.6.821", url = "http://dx.doi.org/10.7494/OpMath.2017.37.6.821", abstract = "A direct approach is used to solve some linear-quadratic stochastic control problems for Brownian motion and other noise processes. This direct method does not require solving Hamilton-Jacobi-Bellman partial differential equations or backward stochastic differential equations with a stochastic maximum principle or the use of a dynamic programming principle. The appropriate Riccati equation is obtained as part of the optimization problem. The noise processes can be fairly general including the family of fractional Brownian motions.", keywords = "linear-quadratic Gaussian control, Riccati equation for optimization, stochastic control", issn = "1232-9274" }