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    • CommentRowNumber1.
    • CommentAuthorUrs
    • CommentTimeDec 18th 2014

    Added to Klein geometry a section History with quotations for where exactly Klein actually speaks about G/HG/H.

    (This key passages is a bit hidden in Klein’s text, appearing at a somewhat unexpected point somewhere in the middle of a 35 page document.)

  1. Iso(d,1)Iso(d,1) contains parity-reversal and time-reversal. To obtain d+1\mathbb{R}^{d+1} from a quotient of Iso(d,1)Iso(d,1), we must quotient these out. Therefore the stabilizer subgroup HH is O(d,1)O(d,1) rather than SO(d,1)SO(d,1).

    Anonymous

    diff, v12, current

    • CommentRowNumber3.
    • CommentAuthorUrs
    • CommentTimeMar 3rd 2019

    thanks for catching. It was, luckily, correct in the table right below that erroneous line.

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