A short proof of Timashev's theorem on the real component group of a real reductive group
Abstract
Using results of Cartan, Matsumoto, and Casselman, we give a short proof of Timashev's theorem computing the real component group π0 G(R) of a connected reductive real algebraic group G in terms of a maximal torus of G containing a maximal split torus.
0
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.