1. CJM 2002 (vol 54 pp. 970)
|On Graded Categorical Groups and Equivariant Group Extensions |
In this article we state and prove precise theorems on the homotopy classification of graded categorical groups and their homomorphisms. The results use equivariant group cohomology, and they are applied to show a treatment of the general equivariant group extension problem.
Categories:18D10, 18D30, 20E22, 20F29