{ "id": "1307.5151", "version": "v1", "published": "2013-07-19T08:00:00.000Z", "updated": "2013-07-19T08:00:00.000Z", "title": "SDP Duals without Duality Gaps for a Class of Convex Minimax Programs", "authors": [ "V. Jeyakumar", "J. Vicente-Perez" ], "journal": "J Optim Theory Appl 2013", "doi": "10.1007/s10957-013-0496-0", "categories": [ "math.OC" ], "abstract": "In this paper we introduce a new dual program, which is representable as a semi-definite linear programming problem, for a primal convex minimax programming model problem and show that there is no duality gap between the primal and the dual whenever the functions involved are SOS-convex polynomials. Under a suitable constraint qualification, we derive strong duality results for this class of minimax problems. Consequently, we present applications of our results to robust SOS-convex programming problems under data uncertainty and to minimax fractional programming problems with SOS-convex polynomials. We obtain these results by first establishing sum of squares polynomial representations of non-negativity of a convex max function over a system of SOS-convex constraints. The new class of SOS-convex polynomials is an important subclass of convex polynomials and it includes convex quadratic functions and separable convex polynomials. The SOS-convexity of polynomials can numerically be checked by solving semi-definite programming problems whereas numerically verifying convexity of polynomials is generally very hard.", "revisions": [ { "version": "v1", "updated": "2013-07-19T08:00:00.000Z" } ], "analyses": { "keywords": [ "convex minimax programs", "duality gap", "sdp duals", "minimax programming model problem", "programming problem" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1307.5151J" } } }