Mapping Class Group

In mathematics, in the sub-field of geometric topology, the mapping class group is an important algebraic invariant of a topological space. Briefly, the mapping class group is a discrete group of 'symmetries' of the space.

Read more about Mapping Class Group:  Motivation, Definition, Mapping-class Groups of Pairs, Torelli Group, Stable Mapping Class Group

Famous quotes containing the words class and/or group:

    The General Strike has taught the working class more in four days than years of talking could have done.
    —A.J. (Arthur James)

    Once it was a boat, quite wooden
    and with no business, no salt water under it
    and in need of some paint. It was no more
    than a group of boards. But you hoisted her, rigged her.
    She’s been elected.
    Anne Sexton (1928–1974)