Groupoids, the Phragmen-Brouwer Property and the Jordan Curve Theorem

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We publicise a proof of the Jordan Curve Theorem which relates it to the Phragmen-Brouwer Property, and whose proof uses the van Kampen theorem for the fundamental groupoid on a set of base points.
to be published in "Journal of Homotopy and Related Structures"

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Algebraic Topology

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http://salesiana.dossiersoluciones.com/handle/123456789/114217

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0607229
 http://arxiv.org/abs/math/0607229

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arXiv