%0 Journal Article %A Mikhail Lifshits %A Werner Linde %T Compactness properties of weighted summation operators on trees %J Studia Mathematica %D 2011 %P 17-47 %V 202 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm202-1-2/ %R 10.4064/sm202-1-2 %G en %F 10_4064_sm202_1_2