Étienne Ghys

Étienne Ghys is a French mathematician. His research focuses mainly on geometry and dynamical systems. He also expresses much interest in the historical development of mathematical ideas, especially the contribution of Henri Poincaré. He co-authored the computer graphics mathematical movie Dimensions: A walk through mathematics. He is is currently a CNRS "directeur de recherche" at the École normale supérieurein Lyon. He is also a member of the French Academy of Sciences.