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Results tagged with rt.representation-theory
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user 1921
Linear representations of algebras and groups, Lie theory, associative algebras, multilinear algebra.
7
votes
How ugly is the isomorphism R[GxH] = R[G] (X) R[H] for groups G, H?
You can somewhat lift the algebraic closedness assumption: You have to allow an auxillary ring (actually, division algebra) to act equivariantly on both representation and tensor over it.
Such a deco …
- 2,145