Intersection properties for cones of nondecreasing concave functions
Volume 166 / 2005
Studia Mathematica 166 (2005), 263-269 MSC: Primary 46B70. DOI: 10.4064/sm166-3-4
We prove that the basic facts of the real interpolation method remain true for couples of cones obtained by intersection of the cone of concave functions with rearrangement invariant spaces.