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1. • CommentRowNumber1.
   • CommentAuthorUrs
   • CommentTimeDec 12th 2012
   • PermaLink
   Author: Urs
   Format: MarkdownItexhad created _[[braided 3-group]]_ a good while back. Now I have added the example of Brauer/Picard/Unit-3-groups and cross-linked with _[[Brauer group]]_.

   had created braided 3-group a good while back. Now I have added the example of Brauer/Picard/Unit-3-groups and cross-linked with Brauer group.

2. • CommentRowNumber2.
   • CommentAuthorUrs
   • CommentTimeJul 21st 2021
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   Author: Urs
   Format: MarkdownItexadded these pointer: *** As a special case of [[k-tuply groupal n-groupoids]] the notion is at least implicit in: * [[Antonio R. Garzón]], Jesus G. Miranda, Section 6 of: _Serre homotopy theory in subcategories of simplicial groups_, Journal of Pure and Applied Algebra Volume 147, Issue 2, 24 March 2000, Pages 107-123 (<a href="https://doi.org/10.1016/S0022-4049(98)00143-1">doi:10.1016/S0022-4049(98)00143-1</a>) In the generality of [[braided ∞-group|braided ∞-group stacks]] the notion appears in: * [[Thomas Nikolaus]], [[Urs Schreiber]], [[Danny Stevenson]], Def. 4.28 of: _[[schreiber:Principal ∞-bundles -- theory, presentations and applications|Principal ∞-bundles -- General theory]]_, Journal of Homotopy and Related Structures, Volume 10, Issue 4 (2015), pages 749-801 ([doi:10.1007/s40062-014-0083-6](http://link.springer.com/article/10.1007/s40062-014-0083-6), [arXiv:1207.0248](http://arxiv.org/abs/1207.0248)) *** <a href="https://ncatlab.org/nlab/revision/diff/braided+3-group/4">diff</a>, <a href="https://ncatlab.org/nlab/revision/braided+3-group/4">v4</a>, <a href="https://ncatlab.org/nlab/show/braided+3-group">current</a>

   added these pointer:

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   As a special case of k-tuply groupal n-groupoids the notion is at least implicit in:

   • Antonio R. Garzón, Jesus G. Miranda, Section 6 of: Serre homotopy theory in subcategories of simplicial groups, Journal of Pure and Applied Algebra Volume 147, Issue 2, 24 March 2000, Pages 107-123 (doi:10.1016/S0022-4049(98)00143-1)

   In the generality of braided ∞-group stacks the notion appears in:

   • Thomas Nikolaus, Urs Schreiber, Danny Stevenson, Def. 4.28 of: Principal ∞-bundles – General theory, Journal of Homotopy and Related Structures, Volume 10, Issue 4 (2015), pages 749-801 (doi:10.1007/s40062-014-0083-6, arXiv:1207.0248)

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   diff, v4, current