{ "id": "1808.09687", "version": "v1", "published": "2018-08-29T08:56:19.000Z", "updated": "2018-08-29T08:56:19.000Z", "title": "Minimality for unions of 2-dimensional minimal cones with non-isolated singularities", "authors": [ "Xiangyu Liang" ], "comment": "78 pages", "categories": [ "math.CA" ], "abstract": "In this article we prove that for a large class of 2-dimensional minimal cones (including almost all 2-dimensional minimal cones that we know), the almost orthogonal union of any two of them is still a minimal cone. Comparing to existing results for minimality of almost orthogonal union of planes \\cite{2p,2ptopo}, here we are dealing with unions of cones with non isolated singularities, which results in a series of essential difficulties, and new ideas are required. The proof in this article can be generalized to other types of minimalities, e.g. topological minimality, Reifenberg minimality, etc..", "revisions": [ { "version": "v1", "updated": "2018-08-29T08:56:19.000Z" } ], "analyses": { "subjects": [ "28A75", "49Q20", "49K21", "49K99" ], "keywords": [ "minimal cone", "non-isolated singularities", "orthogonal union", "reifenberg minimality", "essential difficulties" ], "note": { "typesetting": "TeX", "pages": 78, "language": "en", "license": "arXiv", "status": "editable" } } }