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Results tagged with lie-algebras
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user 17263
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.
13
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Three-dimensional simple Lie algebras over the rationals
I ran into this question on math.stackexchange.com "How many 3 dimensional simple Lie algebras are there over the rationals?"
The question has been sitting idle for a long time. I thought it was inter …
- 1,197
3
votes
Accepted
twisted affine algebras
To add to what Carnahan has posted. There is a difference between the representation theories of untwisted and twisted affine algebras. But they seem to be unified through vertex algebra theory.
Vert …
- 1,197