{ "id": "1504.03921", "version": "v1", "published": "2015-04-15T14:10:02.000Z", "updated": "2015-04-15T14:10:02.000Z", "title": "The co-points are cut points of level sets for Busemann functions", "authors": [ "Sorin V. Sabau" ], "categories": [ "math.DG" ], "abstract": "We show that the corays to a ray in a complete non-compact Finsler manifold contain geodesic segments to level sets of Busemann functions. Moreover, we characterize the set of co-points to a ray as the cut locus of such set levels. The structure theorem of the co-points set on a surface, namely that is a local tree, and other properties follows immediately from the known results about cut locus. We point out that our Main Theorems are new even for Riemannian manifolds.", "revisions": [ { "version": "v1", "updated": "2015-04-15T14:10:02.000Z" } ], "analyses": { "keywords": [ "level sets", "busemann functions", "cut points", "complete non-compact finsler manifold contain", "non-compact finsler manifold contain geodesic" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015arXiv150403921S" } } }