Nonabelian $H^2$ with coefficients in a group and with coefficients in a crossed module

Mikhail Borovoi

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arXiv · 1608.07366

Nonabelian $H^2$ with coefficients in a group and with coefficients in a crossed module

Mikhail Borovoi

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Abstract

In this note, following Dedecker and Debremaeker, we extend the cohomology exact sequence for nonabelian $H^1$, using nonabelian $H^2$ with coefficients in crossed modules.

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BibTeX RIS

Mikhail Borovoi. 2016-08-26. Nonabelian $H^2$ with coefficients in a group and with coefficients in a crossed module. https://arxiv.org/abs/1608.07366

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