{ "id": "1809.03639", "version": "v1", "published": "2018-09-10T23:59:08.000Z", "updated": "2018-09-10T23:59:08.000Z", "title": "On cylindricity of submanifolds of nonnegative Ricci curvature in a Minkowski space", "authors": [ "A. Borisenko", "Y. Nikolayevsky" ], "comment": "12 pages", "categories": [ "math.DG" ], "abstract": "We consider Finsler submanifolds $M^n$ of nonnegative Ricci curvature in a Minkowski space $\\mathbb{M}^{n+p}$ which contain a line or whose relative nullity index is positive. For hypersurfaces, submanifolds of codimension two or of dimension two, we prove that the submanifold is a cylinder, under a certain condition on the inertia of the pencil of the second fundamental forms. We give an example of a surface of positive flag curvature in a three-dimensional Minkowski space which is not locally convex.", "revisions": [ { "version": "v1", "updated": "2018-09-10T23:59:08.000Z" } ], "analyses": { "subjects": [ "53C40", "53C60", "53C21" ], "keywords": [ "nonnegative ricci curvature", "cylindricity", "second fundamental forms", "three-dimensional minkowski space", "finsler submanifolds" ], "note": { "typesetting": "TeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable" } } }