%0 Journal Article %A Avila, Artur %T Density of positive Lyapunov exponents for 𝑆𝐿(2,ℝ)-cocycles %J Journal of the American Mathematical Society %D 2011 %P 999-1014 %V 24 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-2011-00702-9/ %R 10.1090/S0894-0347-2011-00702-9 %F 10_1090_S0894_0347_2011_00702_9