When is a reductive group scheme linear?
- Resource Type
- Working Paper
- Authors
- Gille, Philippe
- Source
- Subject
- Mathematics - Algebraic Geometry
Mathematics - Rings and Algebras
- Language
We show that a reductive group scheme over a base scheme S admits a faithful linear representation if and only if its radical torus is isotrivial, that is, it splits after a finite {\'e}tale cover.