TY - JOUR AU - Rüdiger W. Braun TI - A partial differential operator which is surjective on Gevrey classes $Γ^{d}(ℝ³)$ with 1 ≤ d < 2 and d ≥ 6 but not for 2 ≤ d < 6 JO - Studia Mathematica PY - 1993 SP - 157 EP - 169 VL - 107 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-107-2-157-169/ DO - 10.4064/sm-107-2-157-169 LA - en ID - 10_4064_sm_107_2_157_169 ER -