On weakly closed functions
N. Ergun, T. Noiri (1990)
Matematički Vesnik
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N. Ergun, T. Noiri (1990)
Matematički Vesnik
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Magdalena Lemańska, Joanna Raczek (2009)
Czechoslovak Mathematical Journal
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A dominating set is a in if the subgraph weakly induced by is connected, where is the set of all edges having at least one vertex in . of a graph is the minimum cardinality among all weakly connected dominating sets in . A graph is said to be or just - if for every edge belonging to the complement of We provide a constructive characterization of weakly connected domination stable trees.
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.
Bishwambhar Roy (2013)
Mathematica Bohemica
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In this paper we introduce a new class of functions called weakly -closed functions with the help of generalized topology which was introduced by Á. Császár. Several characterizations and some basic properties of such functions are obtained. The connections between these functions and some other similar types of functions are given. Finally some comparisons between different weakly closed functions are discussed. This weakly -closed functions enable us to facilitate the formulation...
Mršević, M., Reilly, I.L. (1989)
International Journal of Mathematics and Mathematical Sciences
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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.
Walden Freedman (1997)
Studia Mathematica
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An alternative to the Dunford-Pettis Property, called the DP1-property, is introduced. Its relationship to the Dunford-Pettis Property and other related properties is examined. It is shown that -direct sums of spaces with DP1 have DP1 if 1 ≤ p < ∞. It is also shown that for preduals of von Neumann algebras, DP1 is strictly weaker than the Dunford-Pettis Property, while for von Neumann algebras, the two properties are equivalent.