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nLab > Latest Changes: Complexes of groups

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    • CommentRowNumber1.
    • CommentAuthorTim_Porter
    • CommentTimeApr 15th 2012

    I have started a new entry on complexes of groups, the higher dimensional version of graphs of groups (in the bass-Serre theory). These are related to orbifolds and topological stacks, but as yet there is just a stub. I have put some stuff in the Menagerie so will transfer more across in a short while (I hope!).

    • CommentRowNumber2.
    • CommentAuthorUrs
    • CommentTimeApr 15th 2012
    • (edited Apr 15th 2012)

    I have added the plural redirect, so as to make your link work.

    I don’t understand the following sentence in the entry

    It does not refer to the idea of chain complexes of groups, i.e., chain complexes in the usual sense, except that the groups involved are not assumed to be abelian.

    Is the “except” maybe meant to be an “in particular”?

    • CommentRowNumber3.
    • CommentAuthorTim_Porter
    • CommentTimeApr 19th 2012

    Thanks. I have altered the wording at that point as it was ugly and confusing. Have a look to see if it clearer now.

    • CommentRowNumber4.
    • CommentAuthorUrs
    • CommentTimeApr 19th 2012

    Yes, thanks!

1 to 4 of 4

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