Cobordisms of Free Knots and Gauss Words

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We investigate cobordisms of free knots. Free knots and links are also called homotopy classes of Gauss words and phrases. We define a new strong invariant of free knots which allows to detect free knots not cobordant to the trivial one.
10 pages, 19 figures

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Geometric Topology, Algebraic Geometry

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http://salesiana.dossiersoluciones.com/handle/123456789/227611

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0904.2862
 http://arxiv.org/abs/0904.2862

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arXiv