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    • CommentRowNumber1.
    • CommentAuthorTim_Porter
    • CommentTimeOct 16th 2014
    • (edited Oct 16th 2014)

    At model structure on chain complexes, an ’anonymous editor’ suggests that a line saying ’blah blah’ should be completed to something more illuminating!

    • CommentRowNumber2.
    • CommentAuthorUrs
    • CommentTimeOct 17th 2014
    • (edited Oct 17th 2014)

    Just for reader’s convenience: this refers to this precise spot in the entry.

    • CommentRowNumber3.
    • CommentAuthorTim_Porter
    • CommentTimeOct 17th 2014

    (I just fixed a typo.)

    • CommentRowNumber4.
    • CommentAuthorUrs
    • CommentTimeAug 21st 2020

    added pointer to

    diff, v64, current

    • CommentRowNumber5.
    • CommentAuthorUrs
    • CommentTimeAug 21st 2020
    • (edited Aug 21st 2020)

    added references which claim (but don’t prove) the projective model structure on connective cochain complexes:

    The projective model structure on connective cochain complexes is claimed, without proof, in:

    diff, v64, current

    • CommentRowNumber6.
    • CommentAuthorUrs
    • CommentTimeJul 11th 2021

    briefly added the statement (here) that the projective model structure on connective chain complexes is monoidal.

    diff, v73, current

    • CommentRowNumber7.
    • CommentAuthorUrs
    • CommentTimeJul 20th 2021
    • CommentRowNumber8.
    • CommentAuthorUrs
    • CommentTimeJul 21st 2021
    • (edited Jul 21st 2021)

    Added (here) statement and proof, following Prop. 24 in

    (which I added), that the model structures with (co)fibrations the degreewise injections/surjections are proper.

    No proof yet that this works for bounded chain complexes with conditions in positive degrees.

    diff, v77, current

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