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1. • CommentRowNumber1.
   • CommentAuthornLab edit announcer
   • CommentTimeApr 4th 2018
   • PermaLink
   Author: nLab edit announcer
   Format: MarkdownItexI added the new Nikolaus-Waldorf article. David Corfield <a href="https://ncatlab.org/nlab/revision/diff/T-duality+2-group/6">diff</a>, <a href="https://ncatlab.org/nlab/revision/T-duality+2-group/6">v6</a>, <a href="https://ncatlab.org/nlab/show/T-duality+2-group">current</a>

   I added the new Nikolaus-Waldorf article.

   David Corfield

   diff, v6, current

2. • CommentRowNumber2.
   • CommentAuthorDavid_Corfield
   • CommentTimeApr 4th 2018
   • PermaLink
   Author: David_Corfield
   Format: MarkdownItexThey mention four related 2-groups on pp. 3-4. Where it says 'the T-duality 2-group' at [[T-duality 2-group]], presumably that's their $\mathbb{T}\mathbb{D}$. But they're also speaking of a 'half-geometric T-duality 2-group'. They say their work on 'crossed interwiners' is new. Shouldn't one expect this to be fairly straightforward abstract general work - something that should fall out from a HoTT treatment of [[infinity-actions]]? But it seems they want it to capture a certain level of strictness in morphisms of Lie 2-groups (p. 4).

   They mention four related 2-groups on pp. 3-4. Where it says ’the T-duality 2-group’ at T-duality 2-group, presumably that’s their $\mathbb{T}\mathbb{D}$. But they’re also speaking of a ’half-geometric T-duality 2-group’.

   They say their work on ’crossed interwiners’ is new. Shouldn’t one expect this to be fairly straightforward abstract general work - something that should fall out from a HoTT treatment of infinity-actions? But it seems they want it to capture a certain level of strictness in morphisms of Lie 2-groups (p. 4).

3. • CommentRowNumber3.
   • CommentAuthorDavid_Corfield
   • CommentTimeFeb 21st 2022
   • (edited Feb 21st 2022)
   • PermaLink
   Author: David_Corfield
   Format: MarkdownItexTo add: Calculation of the categorical automorphism group of the T-duality 2-group is in * [[Konrad Waldorf]], _Categorical symmetries of T-duality_ ([arXiv:2202.09187](https://arxiv.org/abs/2202.09187))

   To add:

   Calculation of the categorical automorphism group of the T-duality 2-group is in

   • Konrad Waldorf, Categorical symmetries of T-duality (arXiv:2202.09187)
4. • CommentRowNumber4.
   • CommentAuthorUrs
   • CommentTimeDec 9th 2022
   • PermaLink
   Author: Urs
   Format: MarkdownItexI have added publication data to: * [[Thomas Nikolaus]], [[Konrad Waldorf]], *Higher geometry for non-geometric T-duals*, Commun. Math. Phys. **374** (2020) 317-366 &lbrack;[arXiv:1804.00677](https://arxiv.org/abs/1804.00677), [doi:10.1007/s00220-019-03496-3](https://doi.org/10.1007/s00220-019-03496-3)&rbrack; <a href="https://ncatlab.org/nlab/revision/diff/T-duality+2-group/8">diff</a>, <a href="https://ncatlab.org/nlab/revision/T-duality+2-group/8">v8</a>, <a href="https://ncatlab.org/nlab/show/T-duality+2-group">current</a>

   I have added publication data to:

   • Thomas Nikolaus, Konrad Waldorf, Higher geometry for non-geometric T-duals, Commun. Math. Phys. 374 (2020) 317-366 [arXiv:1804.00677, doi:10.1007/s00220-019-03496-3]

   diff, v8, current