{ "id": "2208.11897", "version": "v1", "published": "2022-08-25T07:01:40.000Z", "updated": "2022-08-25T07:01:40.000Z", "title": "New characterizations of ruled real hypersurfaces in complex projective space", "authors": [ "Juan de Dios Pérez", "David Pérez-López" ], "categories": [ "math.DG" ], "abstract": "We consider real hypersurfaces $M$ in complex projective space equipped with both the Levi-Civita and generalized Tanaka-Webster connections. For any nonnull constant $k$ and any symmetric tensor field of type (1,1) $L$ on $M$ we can define two tensor fields of type (1,2) on $M$, $L_F^{(k)}$ and $L_T^{(k)}$, related to both connections. We study the behaviour of the structure operator $\\phi$ with respect to such tensor fields in the particular case of $L=A$, the shape operator of $M$, and obtain some new characterizations of ruled real hypersurfaces in complex projective space.", "revisions": [ { "version": "v1", "updated": "2022-08-25T07:01:40.000Z" } ], "analyses": { "subjects": [ "53C15", "53B25" ], "keywords": [ "complex projective space", "ruled real hypersurfaces", "characterizations", "symmetric tensor field", "shape operator" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }