Questionnaire Groupe (action ou vérité)

The advantage of a series of questions on group actions is that while practicing, you also review the entire algebra curriculum! With groups, play with others! It's more fun to compete. P.S. Thanks to N.P. for the title. 00:00 Actions of the symmetric group 14:17 Action of the cyclic group 16:35 Actions of GL_n on K^n 36:19 Steinitz action 40:40 Action of GL_n on matrix spaces 49:19 Various actions (O_n, affine spaces...)