Given a smooth Riemannian manifold, several groups act on it - by isometries, by diffeomorphisms, by homeomorphisms or by homotopy equivalences. We shall discuss several classical results about what is known and see some interesting examples. Later on, we shall outline some observations about diffeomorphisms of product of (possibly exotic) spheres.
On groups acting on manifolds
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Nom de l'orateur
Somnath Basu
Etablissement de l'orateur
RKM Vivekananda University
Date et heure de l'exposé
Lieu de l'exposé
Salle des séminaires