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Results tagged with weyl-group
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user 1729
The Weyl group of a root system is a subgroup generated by reflections through the hyperplanes orthogonal to the roots.
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Accepted
Weyl group of a singular torus
This answer combines my previous comments and adds a little more.
Let $G$ be connected reductive over an algebraically closed field. Let $S \subset T$ be a subtorus of a maximal torus.
I'll denote by …
- 1,388