TY  - JOUR
AU  - Lian, Zeng
AU  - Young, Lai-Sang
TI  - Lyapunov exponents, periodic orbits, and horseshoes for semiflows on Hilbert spaces
JO  - Journal of the American Mathematical Society
PY  - 2012
SP  - 637
EP  - 665
VL  - 25
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-2012-00734-6/
DO  - 10.1090/S0894-0347-2012-00734-6
ID  - 10_1090_S0894_0347_2012_00734_6
ER  -