Poincare Complex Diagonals

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Let M be a Poincare duality space of dimension at least four. In this paper we describe a complete obstruction to realizing the diagonal map M -> M x M by a Poincare embedding. The obstruction group depends only on the fundamental group and the parity of the dimension of M.
Fixed some references, minor typos and improved some formulations

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Algebraic Topology, 57P10; 55P91

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http://salesiana.dossiersoluciones.com/handle/123456789/119109

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0611036
 http://arxiv.org/abs/math/0611036

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arXiv