Article
Keywords:
Banach contraction; cohomology; cocycle; coboundary; separating family; core
Summary:
References:
[1] Bakakhanian, A.: Cohomological Methods in Group Theory. Marcel Dekker, New York (1972).
[2] Janoš, L.:
The Banach contraction mapping principle and cohomology. Comment. Math. Univ. Carolin. 41 (2000), 605-610.
MR 1795089