Density presentations of functors

B. J. Day*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    8 Citations (Scopus)


    The article contains the basic theory resulting from the presentation of a dense functor N: A → C by means of an expansion K(k, C) ० NJk C the term dense functor being used instead of the equivalent term left-adequate functor. Results by various authors on the density type of a functor are formulated in the V-context for V symmetric monoidal closed, and elementary proofs are given. In particular a characterisation theorem containing the well-known results of Beck and Ulmer is established.

    Original languageEnglish
    Pages (from-to)427-448
    Number of pages22
    JournalBulletin of the Australian Mathematical Society
    Issue number3
    Publication statusPublished - 1977


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