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Linear representations of algebras and groups, Lie theory, associative algebras, multilinear algebra.

4 votes
1 answer
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Is the direct sum in Maschke's Theorem an orthogonal decomposition?

I am reading a paper on coding theory, and it uses a statement, which was claimed to be a reformulation of Maschke's Theorem. But I felt that was false... Let's say $\mathcal(V):=\mathcal{F}_2^n$ is …
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