{ "id": "1801.04591", "version": "v1", "published": "2018-01-14T17:59:54.000Z", "updated": "2018-01-14T17:59:54.000Z", "title": "On the shape factor of interaction laws for a non-local approximation of the Sobolev norm and the total variation", "authors": [ "Clara Antonucci", "Massimo Gobbino", "Matteo Migliorini", "Nicola Picenni" ], "comment": "Compte-rendu that summarizes the strategy developed in ArXiv:1708.01231 and ArXiv:1712.04413", "categories": [ "math.FA", "math.OC" ], "abstract": "We consider the family of non-local and non-convex functionals introduced by H. Brezis and H.-M. Nguyen in a recent paper. These functionals Gamma-converge to a multiple of the Sobolev norm or the total variation, depending on a summability exponent, but the exact values of the constants are unknown in many cases. We describe a new approach to the Gamma-convergence result that leads in some special cases to the exact value of the constants, and to the existence of smooth recovery families.", "revisions": [ { "version": "v1", "updated": "2018-01-14T17:59:54.000Z" } ], "analyses": { "subjects": [ "26B30", "46E35" ], "keywords": [ "total variation", "sobolev norm", "shape factor", "interaction laws", "non-local approximation" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }