Unconditionally convergent operators on
Surjit Singh Khurana (2005)
Mathematica Slovaca
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Surjit Singh Khurana (2005)
Mathematica Slovaca
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T. Alvarez, R. Cross, A. Gouveia (1995)
Studia Mathematica
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Characterisations are obtained for the following classes of unbounded linear operators between normed spaces: weakly compact, weakly completely continuous, and unconditionally converging operators. Examples of closed unbounded operators belonging to these classes are exhibited. A sufficient condition is obtained for the weak compactness of T' to imply that of T.
J. H'Michane, A. El Kaddouri, K. Bouras, M. Moussa (2013)
Commentationes Mathematicae Universitatis Carolinae
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We characterize Banach lattices under which each b-weakly compact (resp. b-AM-compact, strong type (B)) operator is L-weakly compact (resp. M-weakly compact).
Driss Lhaimer, Mohammed Moussa, Khalid Bouras (2020)
Mathematica Bohemica
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In this paper, we introduce and study new concepts of b-L-weakly and order M-weakly compact operators. As consequences, we obtain some characterizations of KB-spaces.
Kamal El Fahri, Hassan Khabaoui, Jawad Hmichane (2022)
Commentationes Mathematicae Universitatis Carolinae
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We introduce a new class of operators that generalizes L-weakly compact operators, which we call order almost L-weakly compact. We give some characterizations of this class and we show that this class of operators satisfies the domination problem.
Othman Aboutafail, Larbi Zraoula, Noufissa Hafidi (2021)
Mathematica Bohemica
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We establish necessary and sufficient conditions under which weak Banach-Saks operators are weakly compact (respectively, L-weakly compact; respectively, M-weakly compact). As consequences, we give some interesting characterizations of order continuous norm (respectively, reflexive Banach lattice).