(L) Sets and almost (L) seys in Banach lattices

Abstract

We characterize (L) sets and almost (L) sets in Banach lattices. Also, we look at Banach lattices in which these two classes of sets coincide.

Keywords: (L) sets, Dunford-Pettis operator, almost Dunford-Pettis operator

Quaestiones Mathematicae 36(2013), 107-118