A characterization of the interpolation spaces of \(H^ 1\) and \(L^{\infty}\) on the line
It is shown that the spaces \((H^ 1({\mathbb{R}}),L^{\infty}({\mathbb{R}}))\) form a Calderon-Mityagin pair. It follows that the interpolation spaces for this pair consist of elements whose nontangential maximal functions lie in rearrangement invariant spaces.
scientific article; zbMATH DE number 4105628