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Article

MSC: 54H20, 54H25
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
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