%0 Journal Article %A Rüdiger W. Braun %T 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 %J Studia Mathematica %D 1993 %P 157-169 %V 107 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-107-2-157-169/ %R 10.4064/sm-107-2-157-169 %G en %F 10_4064_sm_107_2_157_169