Andrade, M. G. C.; Gazon, A. B.; Lima, A. F.
(ДЗ "ЛНУ імені Тараса Шевченка", 2018)
Let G be a group, S = {Si
, i ∈ I} a non empty
family of (not necessarily distinct) subgroups of infinite index in
G and M a Z2G-module. In [4] the authors defined a homological
invariant E∗(G, S, M), which is ...