Protorus
In
Pontryagin dual of a discrete torsion-free abelian group
.
Some examples of protori are given by
solenoid groups
.
See also
- Duocylinder - Cartesian product of two disks
- Proprism
References
- Hofmann, Karl H.; Morris, Sidney A. (2006), The structure of compact groups, de Gruyter Studies in Mathematics, vol. 25 (2nd ed.), Berlin: Walter de Gruyter & Co., MR 2261490