On Free Knots

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We prove that for some knot-like objects one can easily recognize non-equivalence w.r.t. all Reidemeister moves by studying some equivalence classes modulo only 2nd Reidemeister moves. There are applications to virtual knots, graph-links and looped graphs.
13 pages, 11 Figures

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Geometric Topology, Combinatorics, 57M25

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http://salesiana.dossiersoluciones.com/handle/123456789/220923

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0901.2214
 http://arxiv.org/abs/0901.2214

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arXiv