Pin Group - Indefinite Form

Indefinite Form

There are as many as eight different double covers of O(p, q), for p, q ≠ 0, which correspond to the extensions of the center (which is either C2 × C2 or C4) by C2. Only two of them are pin groups—those that admit the Clifford algebra as a representation. They are called Pin(p, q) and Pin(q, p) respectively.

Read more about this topic:  Pin Group

Famous quotes containing the words indefinite and/or form:

    Every word we speak is million-faced or convertible to an indefinite number of applications. If it were not so we could read no book. Your remark would only fit your case, not mine.
    Ralph Waldo Emerson (1803–1882)

    Like dreams, statistics are a form of wish fulfillment.
    Jean Baudrillard (b. 1929)