{ "id": "1303.5457", "version": "v2", "published": "2013-03-21T20:37:57.000Z", "updated": "2013-11-10T22:46:20.000Z", "title": "Explicit solution of a tropical optimization problem with application to project scheduling", "authors": [ "Nikolai Krivulin" ], "comment": "Mathematical Methods and Optimization Techniques in Engineering: Proc. 1st Intern. Conf. on Optimization Techniques in Engineering (OTENG '13), Antalya, Turkey, October 8-10, 2013, WSEAS Press, 2013, pp. 39-45. ISBN 978-960-474-339-1", "categories": [ "math.OC", "cs.SY" ], "abstract": "A new multidimensional optimization problem is considered in the tropical mathematics setting. The problem is to minimize a nonlinear function defined on a finite-dimensional semimodule over an idempotent semifield and given by a conjugate transposition operator. A special case of the problem, which arises in just-in-time scheduling, serves as a motivation for the study. To solve the general problem, we derive a sharp lower bound for the objective function and then find vectors that yield the bound. Under general conditions, an explicit solution is obtained in a compact vector form. This result is applied to provide new solutions for scheduling problems under consideration. To illustrate, numerical examples are also presented.", "revisions": [ { "version": "v2", "updated": "2013-11-10T22:46:20.000Z" } ], "analyses": { "subjects": [ "65K10", "15A80", "65K05", "90C48", "90B35" ], "keywords": [ "tropical optimization problem", "explicit solution", "project scheduling", "application", "multidimensional optimization problem" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1303.5457K" } } }