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Results tagged with reductive-groups
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user 510242
A reductive group is an algebraic group $G$ over an algebraically closed field such that the unipotent radical of $G$ is trivial
3
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221
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Reductive groups over arbitrary fields with disconnected relative root systems
Let $\mathbf{G}$ be a connected reductive group over a field $k$, not necessarily algebraically closed. Let $\Phi$ be the relative root system for $\mathbf{G}$ with respect to $k$, and assume that $\ …
- 131
3
votes
Reductive groups over arbitrary fields with disconnected relative root systems
After looking through the reference that Mikhail Borovoi gave me and tracing through a bunch of back-references, I found a fairly clear description of what holds in the following survey of Tits:
Tits, …
- 131