TY - JOUR AU - Feng-Yu Wang TI - $L^1$-convergence and hypercontractivity of diffusion semigroups on manifolds JO - Studia Mathematica PY - 2004 SP - 219 EP - 227 VL - 162 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm162-3-3/ DO - 10.4064/sm162-3-3 LA - en ID - 10_4064_sm162_3_3 ER -