{ "id": "1907.01740", "version": "v1", "published": "2019-07-01T12:57:49.000Z", "updated": "2019-07-01T12:57:49.000Z", "title": "Mean-Field Stochastic Linear-Quadratic Optimal Control Problems: Weak Closed-Loop Solvability", "authors": [ "Jingrui Sun", "Hanxiao Wang" ], "comment": "arXiv admin note: substantial text overlap with arXiv:1806.05215", "categories": [ "math.OC" ], "abstract": "This paper is concerned with mean-field stochastic linear-quadratic (MF-SLQ, for short) optimal control problems with deterministic coefficients. The notion of weak closed-loop optimal strategy is introduced. It is shown that the open-loop solvability is equivalent to the existence of a weak closed-loop optimal strategy. Moreover, when open-loop optimal controls exist, there is at least one of them admitting a state feedback representation, which is the outcome of a weak closed-loop optimal strategy. Finally, an example is presented to illustrate the procedure for finding weak closed-loop optimal strategies.", "revisions": [ { "version": "v1", "updated": "2019-07-01T12:57:49.000Z" } ], "analyses": { "keywords": [ "weak closed-loop optimal strategy", "mean-field stochastic linear-quadratic optimal control", "stochastic linear-quadratic optimal control problems", "weak closed-loop solvability" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }