%0 Journal Article %A Hernández, Francisco L. %A Sánchez de los Reyes, Víctor Manuel %A Semenov, Evgeny M. %T Disjoint strict singularity of inclusions between rearrangement invariant spaces %D 2001 %@ 0039-3223 %U https://hdl.handle.net/20.500.14352/57903 %X It is studied when inclusions between rearrangement invariant function spaces on the interval [0, infinity) are disjointly strictly singular operators. In particular suitable criteria, in terms of the fundamental function, for the inclusions L 1 ∩L ∞ ↪E and E↪L 1 +L ∞ to be disjointly strictly singular are shown. Applications to the classes of Lorentz and Marcinkiewicz spaces are given. %~