%0 Journal Article
%A Lian, Zeng
%A Young, Lai-Sang
%T Lyapunov exponents, periodic orbits, and horseshoes for semiflows on Hilbert spaces
%J Journal of the American Mathematical Society
%D 2012
%P 637-665
%V 25
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-2012-00734-6/
%R 10.1090/S0894-0347-2012-00734-6
%F 10_1090_S0894_0347_2012_00734_6