mapping class group(Noun)
The group of self-homeomorphisms of a topological space, modulo homotopy.
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.
The numerical value of mapping class group in Chaldean Numerology is: 6
The numerical value of mapping class group in Pythagorean Numerology is: 9
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"mapping class group." Definitions.net. STANDS4 LLC, 2017. Web. 18 Dec. 2017. <http://www.definitions.net/definition/mapping class group>.