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In mathematics, group cohomology is a set of mathematical tools used to study groups using cohomology theory, a technique from algebraic topology. Analogous to group representations, group cohomology looks at the group actions of a group G in an associated G-module M to elucidate the properties of the group.

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metaplectic group does not split

Hi All, The topic is old but in case some of you may be interested in the following additional comments, I may recommend to read Hans Reiter: Lecture Notes in Mathematics 1382 "Metaplectic Groups an …
Eric Chopin's user avatar