arXiv · math/0404009
Automorphism groups of finite dimensional simple algebras
Abstract
We show that if a field k contains sufficiently many elements(for instance, if k is infinite), and K is an algebraically closed field containing k, then every linear algebraic k-group over K is k-isomorphic to Aut(A\otimes_kK), where A is a finite dimensional simple algebra over k.
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Nikolai L. Gordeev, Vladimir L. Popov. 2004-04-01. Automorphism groups of finite dimensional simple algebras. https://arxiv.org/abs/math/0404009
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