{ "id": "2109.11516", "version": "v1", "published": "2021-09-23T17:39:56.000Z", "updated": "2021-09-23T17:39:56.000Z", "title": "Weak sharp minima for interval-valued functions and its primal-dual characterizations using generalized Hukuhara subdifferentiability", "authors": [ "Krishan Kumar", "Debdas Ghosh", "Gourav Kumar" ], "categories": [ "math.OC" ], "abstract": "This article introduces the concept of weak sharp minima (WSM) for convex interval-valued functions (IVFs). To identify a set of WSM of a convex IVF, we provide its primal and dual characterizations. The primal characterization is given in terms of $gH$-directional derivatives. On the other hand, to derive dual characterizations, we propose the notions of the support function of a subset of $I(\\mathbb{R})^{n}$ and $gH$-subdifferentiability for convex IVFs. Further, we develop the required $gH$-subdifferential calculus for convex IVFs. Thereafter, by using the proposed $gH$-subdifferential calculus, we provide dual characterizations for the set of WSM of convex IVFs.", "revisions": [ { "version": "v1", "updated": "2021-09-23T17:39:56.000Z" } ], "analyses": { "keywords": [ "weak sharp minima", "generalized hukuhara subdifferentiability", "interval-valued functions", "convex ivf", "primal-dual characterizations" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }