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nLab > Latest Changes: comparison map between algebraic and topological K-theory

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    • CommentRowNumber1.
    • CommentAuthorUrs
    • CommentTimeApr 29th 2014
    • (edited Apr 29th 2014)

    This used to be a super-brief paragraph at topological K-theory; and now it is a slightly longer but still stubby entry comparison map between algebraic and topological K-theory

    • CommentRowNumber2.
    • CommentAuthorColin Tan
    • CommentTimeApr 29th 2014

    It is written at comparison map between algebraic and topological K-theory that there is a natural homomorphism Kℂ→KUK{\mathbb{C}}\to KU of spectra. What does natural mean here?

    • CommentRowNumber3.
    • CommentAuthorUrs
    • CommentTimeApr 29th 2014
    • (edited Apr 29th 2014)

    Right, I should maybe better have written “canonical”. On the other hand, in the perspective from cohesion disussed there it is indeed natural, in that it is a natural transformation between two functors.

    • CommentRowNumber4.
    • CommentAuthorUrs
    • CommentTimeApr 29th 2014

    Okay, I have changed and expanded the wording on this point in the entry.

1 to 4 of 4

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