Keywords:-
Article Content:-
Abstract
Selected topic in the cohomology of non-arithmetical groups algebras and grouppal structures are chosen and
reviewed. The basics formalisms are recalled. The comparisons between the different approaches are proposed,
from which new open questions arise; in particular, the application of the method of satellites to the study of non-
arithmetical grouppal structures is evidentiated to request the definition of new structures in the calculation of the
irreducible characters.
References:-
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