%0 Journal Article %A Sébastien Gouëzel %A Frédéric Mathéus %A François Maucourant %T Sharp lower bounds for the asymptotic entropy of symmetric random walks %J Groups, geometry, and dynamics %D 2015 %P 711-735 %V 9 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4171/ggd/325/ %R 10.4171/ggd/325 %F 10_4171_ggd_325