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    • CommentRowNumber1.
    • CommentAuthorUrs
    • CommentTimeOct 21st 2020

    I have added pointer to the second of Postnikov’s original articles on the matter:

    • M. M. Postnikov, Issledovaniya po gomotopičeskoĭ teorii nepreryvnyh otobraženiĭ. I. Algebraičeskaya teoriya sistem. II. Naturalʹnaya sistema i gomotopičeskiĭ tip. (Russian) [[_Investigations in homotopy theory of continuous mappings. I. The algebraic theory of systems. II. The natural system and homotopy type._]] Trudy Mat. Inst. Steklov. no. 46. Izdat. Akad. Nauk SSSR, Moscow, 1955. (mathnet:tm1182)

    Is there any linkable online trace of Postnikov’s first article:

    • M. M. Postnikov, Determination of the homology groups of a space by means of the homotopy invariants, Doklady Akad. Nauk SSSR (N.S.) 76: 359–362 (1951)


    diff, v53, current

    • CommentRowNumber2.
    • CommentAuthorDavid_Corfield
    • CommentTimeJan 19th 2021

    Changed the section number of the HoTT book reference to 7.3 on truncations:

    Is there another HoTT reference to mention with a more extensive treatment? Something also to add at Postnikov tower in an (infinity,1)-category.

    diff, v54, current

    • CommentRowNumber3.
    • CommentAuthorDmitri Pavlov
    • CommentTimeJan 19th 2021

    Re #1: The journal in which this article was published is being scanned and uploaded here:

    So far they have volumes up to 1957, whereas Postnikov’s 4-page note was published earlier, in 1951.

    • CommentRowNumber4.
    • CommentAuthorUrs
    • CommentTimeJan 19th 2021

    Thanks for looking into this!