This volume contains the second part of the proceedings of the Summer school ``Group Schemes, Introduction to the SGA3 Seminar of Demazure-Grothendieck'', which was held at the Centre International de Rencontres Mathematiques (CIRM) at Luminy in September 2011. This summer school was devoted to the theory of group schemes and especially of reductive group schemes. This second part mainly consists of expanded versions of talks given, some of which contain new results on group schemes.
This volume contains the second part of the proceedings of the Summer school ``Group Schemes, Introduction to the SGA3 Seminar of Demazure-Grothendieck'', which was held at the Centre International de Rencontres Mathematiques (CIRM) at Luminy in September 2011. This summer school was devoted to the theory of group schemes and especially of reductive group schemes. This second part mainly consists of expanded versions of talks given, some of which contain new results on group schemes.