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arXiv · 1503.04379

Group Extensions of the Co-type of a Crossed Module and Strict Categorical Groups

Nguyen Tien Quang
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Abstract

Prolongations of a group extension can be studied in a more general situation that we call group extensions of the co-type of a crossed module. Cohomology classification of such extensions is obtained by applying the obstruction theory of monoidal functors.

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Nguyen Tien Quang. 2015-03-15. Group Extensions of the Co-type of a Crossed Module and Strict Categorical Groups. https://arxiv.org/abs/1503.04379

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