Article
Keywords:
Dunford-Pettis operator; order continuous norm; positive Schur property; KB-space
Summary:
We establish sufficient conditions for the duality of regular Dunford-Pettis operators on Banach lattices and necessary conditions for the duality condition ``if the adjoint of a (positive) operator is Dunford-Pettis, then the operator itself is''. In particular, we show that if each operator $T\colon E\rightarrow F$ from a Banach lattice $E$ with an order continuous norm to another Banach lattice $F$ is Dunford-Pettis whenever its adjoint $T^{\prime }\colon F^{\prime }\rightarrow E^{\prime }$ is Dunford-Pettis, then $E$ has the Schur property or $F$ is a KB-space. As consequences, we deduce a characterization of the Schur property (and KB-spaces).
References:
[8] Wnuk, W.:
Banach spaces with properties of the Schur type -- A survey. Conf. Semin. Mat. Univ. Bari 249 (1993), 25 pages.
MR 1230964 |
Zbl 0812.46010