%0 Journal Article %A M. Ledoux %T A Heat Semigroup Approach to Concentration on the Sphere and on a Compact Riemannian Manifold. %J Geometric and functional analysis %D 1992 %P 221-224 %V 2 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/GFA_1992__2_1_58150/ %F GFA_1992__2_1_58150