Groupes et algèbres de Lie : Chapitres 4 à 6 = Lie groups and algebras : Chapters 4 to 6

Nicolas BOURBAKI's Elements of Mathematics aim to provide a rigorous, systematic presentation without prerequisites of mathematics from their foundations.This third volume of the Book on Groups and Lie Algebras, ninth Book of the treatise, is devoted to the structures of root systems , Coxeter groups and Tits systems, which appear naturally in the study of analytic or algebraic Lie groups