{ "id": "1608.00960", "version": "v1", "published": "2016-08-02T19:45:34.000Z", "updated": "2016-08-02T19:45:34.000Z", "title": "Morin singularities of coframes and frames", "authors": [ "Camila M. Ruiz" ], "categories": [ "math.GT" ], "abstract": "Inspired by the properties of an $n$-frame of gradients $(\\nabla f_1, \\ldots, \\nabla f_n)$ of a Morin map $f:M\\rightarrow\\mathbb{R}^n$, with $\\dim M\\geq n$, we introduce the notion of Morin singularities in the context of singular $n$-coframes and singular $n$-frames. We also study the singularities of generic 1-forms associated to a Morin $n$-coframe, in order to generalize a result of T. Fukuda [4, Theorem 1], which establishes a modulo 2 congruence between the Euler characteristic of a compact manifold $M$ and the Euler characteristics of the singular sets of a Morin map defined on $M$, to the case of Morin $n$-coframes and Morin $n$-frames.", "revisions": [ { "version": "v1", "updated": "2016-08-02T19:45:34.000Z" } ], "analyses": { "keywords": [ "morin singularities", "morin map", "euler characteristic", "compact manifold", "singular sets" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }