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    • CommentRowNumber1.
    • CommentAuthorUrs
    • CommentTimeFeb 11th 2012

    started something basic at Steenrod square

    • CommentRowNumber2.
    • CommentAuthorUrs
    • CommentTimeNov 15th 2013

    added to Steenrod square the explicit construction in terms of extended powers, in a new section here.

    • CommentRowNumber3.
    • CommentAuthorUrs
    • CommentTimeFeb 19th 2018

    I have made explicit the Adem relation for postcomposition with Sq 1Sq^1: here

    • CommentRowNumber4.
    • CommentAuthorUrs
    • CommentTimeSep 2nd 2020
    • (edited Sep 2nd 2020)

    added publication details and jstor-links to:

    diff, v19, current

  1. fixed grading (Sq^2n adds +2n)

    Anonymous

    diff, v20, current

    • CommentRowNumber6.
    • CommentAuthorUrs
    • CommentTimeJan 17th 2023

    added the following reference also here:

    (Incidentally, the nLab is extremely sluggish to me since last night, each page load at the verge of timing out. Had contacted the technical team about it, but no reply yet. But I guess I am not the only one experiencing this issue?)

    diff, v26, current

    • CommentRowNumber7.
    • CommentAuthorDavid_Corfield
    • CommentTimeJan 17th 2023

    All is working speedily for me.

    • CommentRowNumber8.
    • CommentAuthorUrs
    • CommentTimeJan 17th 2023

    Yes, strange, that’s what I also hear from the technical team.

    For me the problem persisted, on different devices and networks, from last evening to this morning. Then it went away.