A topological space on which a group of homeomorphic mappings of the space onto itself is defined, with the property that there exist for any two points $A$ and $B$ of the space a transformation of this group taking $A$ to $B$.
The origin of the term "Klein space" is connected with the Erlangen program of F. Klein (1872), in which different geometries were defined from the point of view of their corresponding transformation groups.
See also Homogeneous space.
|[a1]||F. Klein, "The Erlangen program" Math. Intelligencer , 0 (1977) pp. 22–30|
Klein space. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Klein_space&oldid=31836