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    • CommentRowNumber1.
    • CommentAuthorDavid_Corfield
    • CommentTimeJan 23rd 2020

    Thought I’d begin this stub.

    v1, current

    • CommentRowNumber2.
    • CommentAuthorDavid_Corfield
    • CommentTimeJan 23rd 2020
    • (edited Jan 23rd 2020)

    I wonder if anything links the Tambara modules that people in this area study, arising from

    • Daisuke Tambara. Distributors on a tensor category. Hokkaido mathematical journal, 35(2):379–425, 2006,

    with the Tambara functors of equivariant situations (apart from it being the same mathematician).

    • CommentRowNumber3.
    • CommentAuthorDavid_Corfield
    • CommentTimeJan 23rd 2020

    It looks like polynomial functors provide one path between them. I guess ultimately it’s all about generalising linear algebra.

    • CommentRowNumber4.
    • CommentAuthorDavid_Corfield
    • CommentTimeJan 30th 2020

    Added reference:

    • Emily Pillmore, Mario Román, Profunctor Optics: The Categorical View, (blog post)

    diff, v2, current

    • CommentRowNumber5.
    • CommentAuthormattecapu
    • CommentTimeJul 4th 2021
    I added the coend definition of mixed optics
    • CommentRowNumber6.
    • CommentAuthorRodMcGuire
    • CommentTimeJul 4th 2021

    Linked actegory.

    I didn’t check if the use here is consistent with that page.

    see also nForum: actegory.

    diff, v4, current

    • CommentRowNumber7.
    • CommentAuthorDavid_Corfield
    • CommentTimeSep 9th 2021

    I’ve added

    and put it first, since it’s the only simple account I’ve seen of what optics are about.

    diff, v7, current

    • CommentRowNumber8.
    • CommentAuthormattecapu
    • CommentTimeOct 5th 2021

    Added remark about doubles and Tambara theory, plus TODO stub for profunctor representation.

    diff, v8, current

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