The set of all points that can be put into one-to-one correspondence with sets of essentially distinct values of five homogeneous coordinates , not all simultaneously zero, which are connected by the relation
Pentaspherical Space
See also
Tetracyclic PlaneExplore with Wolfram|Alpha
References
Coolidge, J. L. "Pentaspherical Space." Ch. 7 in A Treatise on the Geometry of the Circle and Sphere. New York: Chelsea, pp. 282-305, 1971.Referenced on Wolfram|Alpha
Pentaspherical SpaceCite this as:
Weisstein, Eric W. "Pentaspherical Space." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/PentasphericalSpace.html