%0 Journal Article %A Shigeyoshi Owa %T Some Properties of a Linear Operator %J Mathematica balkanica %D 1997 %P 31 %V 11 %N 1-2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MABA_1997_11_1-2_a3/ %F MABA_1997_11_1-2_a3