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Results tagged with lie-algebras
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user 16524
Lie algebras are algebraic structures which were introduced to study the concept of infinitesimal transformations. The term "Lie algebra" (after Sophus Lie) was introduced by Hermann Weyl in the 1930s. In older texts, the name "infinitesimal group" is used. Related mathematical concepts include Lie groups and differentiable manifolds.
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Outer automorphisms of simple Lie Algebras
Aut(\g) is the semidirect product of Inn(\g) and Out(\g) in the complex AND in the real case. However, this is a rather recent result:
tinyurl.com/68748hn
Edit by jc: The link goes to a PDF abstract …
