CAT(k) group

From HandWiki

In mathematics, a CAT(k) group is a group that acts discretely, cocompactly and isometrically on a CAT(k) space.

References

  • Bridson, Martin R.; Haefliger, AndrĂ© (1999). Metric spaces of non-positive curvature. Grundlehren der Mathematischen Wissenschaften [Fundamental Principles of Mathematical Sciences] 319. Berlin: Springer-Verlag. pp. xxii+643. ISBN 3-540-64324-9.