{ "id": "1905.03367", "version": "v1", "published": "2019-05-08T22:02:46.000Z", "updated": "2019-05-08T22:02:46.000Z", "title": "Fundamental theorem of spacelike curves in Lorentz-Minkowski space", "authors": [ "Atsufumi Honda" ], "comment": "10 pages, no figure", "categories": [ "math.DG" ], "abstract": "In Lorentz-Minkowski 3-space, the fundamental theorem of spacelike curves is known, if they have spacelike, timelike or lightlike curvature vector fields. However, such a theory cannot be applied to spacelike curves with type-changing curvature vector field. To fill the gap, in this paper, we introduce the pseudo-torsion functions along spacelike curves whose curvature vector field has isolated lightlike points, and prove the fundamental theorem for them. As an application, we obtain a necessary and sufficient condition for real analytic spacelike curves to be planar.", "revisions": [ { "version": "v1", "updated": "2019-05-08T22:02:46.000Z" } ], "analyses": { "subjects": [ "53B30", "57R45", "53A35" ], "keywords": [ "fundamental theorem", "lorentz-minkowski space", "real analytic spacelike curves", "lightlike curvature vector fields", "type-changing curvature vector field" ], "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable" } } }