%0 Journal Article %A S. Riemenschneider %T Linear operators on $L^{1/α}(0,∞)$ and Lorentz spaces: The Krasnosel'skii-Zabrieko characteristic sets %J Studia Mathematica %D 1973 %P 225-233 %V 49 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-49-3-225-233/ %R 10.4064/sm-49-3-225-233 %G en %F 10_4064_sm_49_3_225_233