Third Mac Lane cohomology

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Based on the computation of the third author we obtain an interpretation of the third Mac Lane cohomology of rings using certain kind of crossed extensions of rings in the quadratic world. Actually we obtain two such interpretations corresponding to the two monoidal structures on the category of square groups

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K-Theory and Homology, Algebraic Topology, 19D55, 18H15, 18D05, 55P43

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http://salesiana.dossiersoluciones.com/handle/123456789/111640

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0604447
 http://arxiv.org/abs/math/0604447

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arXiv