{ "id": "2401.09024", "version": "v1", "published": "2024-01-17T07:38:39.000Z", "updated": "2024-01-17T07:38:39.000Z", "title": "Timelike Surfaces with Parallel Normalized Mean Curvature Vector Field in the Minkowski 4-Space", "authors": [ "Victoria Bencheva", "Velichka Milousheva" ], "comment": "17 pages", "categories": [ "math.DG" ], "abstract": "In the present paper, we study timelike surfaces with parallel normalized mean curvature vector field in the four-dimensional Minkowski space. We introduce special isotropic parameters on each such surface, which we call canonical parameters, and prove a fundamental existence and uniqueness theorem stating that each timelike surface with parallel normalized mean curvature vector field is determined up to a rigid motion in the Minkowski space by three geometric functions satisfying a system of three partial differential equations. In this way we minimize the number of functions and the number of partial differential equations determining the surface, thus solving the Lund-Regge problem for this class of surfaces.", "revisions": [ { "version": "v1", "updated": "2024-01-17T07:38:39.000Z" } ], "analyses": { "subjects": [ "53B30", "53A35", "53B25" ], "keywords": [ "parallel normalized mean curvature vector", "normalized mean curvature vector field", "timelike surface", "partial differential equations", "minkowski space" ], "note": { "typesetting": "TeX", "pages": 17, "language": "en", "license": "arXiv", "status": "editable" } } }