a Institut Supérieur d?Informatique et des Technologies de Communication de Hammam Sousse, Route principale n°1, 4011 Hammam Sousse, Tunisia b Faculté des Sciences de Sfax, Route de Soukra, km 3,5, Bp 1171, Sfax, Tunisia
Abstract:
In this paper we study recurrent and almost periodic homeomorphisms on the Euclidean space Rm; we give conditions under which recurrent implies periodic. On the other hand we give properties of elements of compact groups of diffeomorphisms on manifolds.