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nLab > Latest Changes: group object

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1 to 9 of 9

  1.  
    • CommentRowNumber1.
    • CommentAuthorUrs
    • CommentTimeOct 1st 2009

    Added to group object the Yoneda-embedding-style definition and added supergroup to the list of examples.

    • CommentRowNumber2.
    • CommentAuthorUrs
    • CommentTimeMar 21st 2021
    • (edited Mar 21st 2021)

    added pointer to

    diff, v26, current

    • CommentRowNumber3.
    • CommentAuthorUrs
    • CommentTimeMar 22nd 2021

    added pointer now also to Eckmann-Hilton’s part III

    Have not added pointer yet to part II. That part is interesting in that it lays out a lot of basic theory of limits and colimits, which apparently was new at that time (and hence maybe should be cited at limit or so) but part II does not seem to talk much about group objects or internalization as such. (Or maybe I missed it, have only skimmed through it, to be frank.)

    diff, v27, current

    • CommentRowNumber4.
    • CommentAuthorUrs
    • CommentTimeMar 22nd 2021

    added pointer to:

    diff, v31, current

    • CommentRowNumber5.
    • CommentAuthorUrs
    • CommentTimeJun 18th 2021

    added these two references, apparently preceding Eckmann-Hilton:

    • Alexander Grothendieck, p. 340 (3 of 23) in: Technique de descente et théorèmes d’existence en géométrie algébriques. II: Le théorème d’existence en théorie formelle des modules, Séminaire Bourbaki : années 1958/59 - 1959/60, exposés 169-204, Séminaire Bourbaki, no. 5 (1960), Exposé no. 195 (numdam:SB_1958-1960__5__369_0, pdf)

    • Alexander Grothendieck, p. 104 (7 of 21) in: Techniques de construction et théorèmes d’existence en géométrie algébrique III: préschémas quotients, Séminaire Bourbaki: années 1960/61, exposés 205-222, Séminaire Bourbaki, no. 6 (1961), Exposé no. 212, (numdam:SB_1960-1961__6__99_0, pdf)

    diff, v33, current

    • CommentRowNumber6.
    • CommentAuthorUrs
    • CommentTimeJul 4th 2021

    fixed the formatting of some of the old diagrams here,

    added mentioning of the example of simplicial groups

    diff, v35, current

  7. rather than overloading 1

    Nathan Brader

    diff, v40, current

    • CommentRowNumber8.
    • CommentAuthorUrs
    • CommentTimeJan 20th 2023

    added (here) the type-theoretic expression for the type of group data strcutures

    diff, v41, current

    • CommentRowNumber9.
    • CommentAuthorUrs
    • CommentTimeApr 27th 2023

    added pointer to:

    diff, v44, current

1 to 9 of 9

  1.