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nLab > Latest Changes: [[Hugh Thomas]] joined to edit [[quiver]] (n/t)

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    • CommentRowNumber1.
    • CommentAuthorTobyBartels
    • CommentTimeOct 16th 2009

    Hugh Thomas joined to edit quiver

    • CommentRowNumber2.
    • CommentAuthorHugh_Thomas
    • CommentTimeOct 16th 2009
    Yes, it's true! (Thanks for correcting my syntax, Toby.) I wandered over from Secret Blogging Seminar.

    My interests (representation theory of algebras, algebraic combinatorics) might be a bit marginal to the main interests of the nLab, but I sometimes have the feeling that there might be connections from some of what I'm doing to higher category theory. Plus I like the idea of co-operation.
    • CommentRowNumber3.
    • CommentAuthorTobyBartels
    • CommentTimeOct 16th 2009

    Welcome and thanks!

    • CommentRowNumber4.
    • CommentAuthorUrs
    • CommentTimeOct 16th 2009

    originally the entry said that "a quiver is a free category on a directed graph".

    Since this is not the way quivers are thought of in the traditional literature, I have now reworked the entry a bit. Starting from saying what the usual literature has I try to motivate why it may be better to identify the concept of quiver with that of free category.

    • CommentRowNumber5.
    • CommentAuthorUrs
    • CommentTimeOct 16th 2009

    One should maybe remakr that this is a situation similar to functor/presheaf. As entities both are the same, but the different names indicate different things we want to do with them.

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