Algebraic groups | Representation theory

Root datum

In mathematical group theory, the root datum of a connected split reductive algebraic group over a field is a generalization of a root system that determines the group up to isomorphism. They were introduced by Michel Demazure in SGA III, published in 1970. (Wikipedia).

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Related pages

Reductive group | Algebraically closed field | Langlands dual group | Algebraic group | Dynkin diagram | Root system | Rank (linear algebra) | Group theory