{ "id": "2102.08712", "version": "v1", "published": "2021-02-17T11:51:20.000Z", "updated": "2021-02-17T11:51:20.000Z", "title": "The Euler characteristic of hypersurfaces in space forms and applications to isoparametric hypersurfaces", "authors": [ "R. Albuquerque" ], "comment": "Article dedicated to the commemorations of the 500th anniversary of the first global circumnavigation voyage by the Portuguese and Spanish navigators", "categories": [ "math.DG" ], "abstract": "We revisit Allendoerfer-Weil's formula for the Euler characteristic of embedded hypersurfaces in constant sectional curvature manifolds, first taking the opportunity to re-prove it while demonstrating techniques of [2] and then applying it to gain new understanding of isoparametric hypersurfaces.", "revisions": [ { "version": "v1", "updated": "2021-02-17T11:51:20.000Z" } ], "analyses": { "subjects": [ "53C35", "57R20", "53C17", "58A15" ], "keywords": [ "isoparametric hypersurfaces", "euler characteristic", "space forms", "applications", "constant sectional curvature manifolds" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }