Questions tagged [reductive-groups]
Reductive groups are almost semisimple, they have nice representation theory, and they are classified by root data. This class of groups is the natural setting of a wide variety of representation theoretic problems in algebraic geometry. Use this tag for questions about algebraic groups of types A, B, C, D, E, F, and G—for Lie groups of the same type use [lie-groups]. Consider using with the [group-theory] and/or [representation-theory] tags.