Chapovsky, Yu. A.; Kalyuzhnyi, A. A.; Podkolzin, G. B.
(Луганский национальный университет им. Т. Шевченко, 2004)
For the cocycle bicrossed product construction
applied to a locally compact group and its two subgroups, we give
a simple description of the group of the corresponding extensions
in terms of the second cohomology group ...