TY - JOUR AU - Bernard Host TI - Ergodic seminorms for commuting transformations and applications JO - Studia Mathematica PY - 2009 SP - 31 EP - 49 VL - 195 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4064/sm195-1-3/ DO - 10.4064/sm195-1-3 LA - en ID - 10_4064_sm195_1_3 ER -