TY - JOUR AU - Yves Elskens TI - Finite-N dynamics admit no travelling-waves solutions for the Hamiltonian XY model and single-wave collisionless plasma model JO - ESAIM. Proceedings PY - 2001 SP - 221 EP - 215 VL - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.1051/proc:2001008/ DO - 10.1051/proc:2001008 LA - en ID - EP_2001_10_a12 ER -