%0 Journal Article %A Aner Shalev %T Word maps, conjugacy classes, and a noncommutative Waring-type theorem %J Annals of mathematics %D 2009 %P 1383-1416 %V 170 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4007/annals.2009.170.1383/ %R 10.4007/annals.2009.170.1383 %G en %F 10_4007_annals_2009_170_1383