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

-1 votes
1 answer
331 views

Representations of the $3\times 3$ Heisenberg group [closed]

I am trying to understand how the Heisenberg group is defined because I would like to understand the (irreducible) representations. Following this article given a symplectic bilinear form $\langle, …
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2 votes
2 answers
855 views

Non-split groups

I am looking for a reference with definitions on what it means for an algebraic group to be split, quasi-split, and non-split. I would like to see some examples of the different "types". Thanks, Tom