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| Format: | Preprint |
| Published: |
2016
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/1608.07366 |
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| _version_ | 1866915895615422464 |
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| author | Borovoi, Mikhail |
| author_facet | Borovoi, Mikhail |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1608_07366 |
| institution | arXiv |
| publishDate | 2016 |
| record_format | arxiv |
| spellingShingle | Nonabelian $H^2$ with coefficients in a group and with coefficients in a crossed module Borovoi, Mikhail Group Theory Algebraic Geometry Category Theory K-Theory and Homology 18G45, 20J06 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. |
| title | Nonabelian $H^2$ with coefficients in a group and with coefficients in a crossed module |
| topic | Group Theory Algebraic Geometry Category Theory K-Theory and Homology 18G45, 20J06 |
| url | https://arxiv.org/abs/1608.07366 |