Results 21 to 30 of about 235,360 (278)
Weak compactness of operators acting on o–O type spaces [PDF]
We consider operators T : M_0 -> Z and T : M -> Z, where Z is a Banach space and (M_0, M) is a pair of Banach spaces belonging to a general construction in which M is defined by a "big-O" condition and M_0 is given by the corresponding "little-o ...
Bessaga +7 more
core +2 more sources
Weighted arithmetic–geometric operator mean inequalities [PDF]
In this paper, we refine and generalize some weighted arithmetic-geometric operator mean inequalities due to Lin (Stud. Math. 215:187-194, 2013) and Zhang (Banach J. Math. Anal. 9:166-172, 2015) as follows: Let A and B be positive operators.
openaire +3 more sources
Invariance in a class of operations related to weighted quasi-geometric means [PDF]
Let $I\subset (0,\infty )$ be an interval that is closed with respect to the multiplication. The operations $C_{f,g}\colon I^{2}\rightarrow I$ of the form \begin{equation*} C_{f,g}\left( x,y\right) =\left( f\circ g\right) ^{-1}\left( f\left( x\right) \cdot g\left( y\right) \right) \text{,} \end{equation*} where $f,g$ are bijections of $I$ are ...
Jimmy Devillet, Janusz Matkowski
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This article introduces the concept of Heronian mean operators, geometric Heronian mean operators, neutrosophic cubic number–improved generalized weighted Heronian mean operators, neutrosophic cubic number–improved generalized weighted geometric Heronian
Muhammad Gulistan +5 more
doaj +1 more source
Compact bilinear commutators: the weighted case [PDF]
Commutators of bilinear Calderón-Zygmund operators and multiplication by functions in a certain subspace of the space of functions of bounded mean oscillation are shown to be compact on appropriate products of weighted Lebesgue spaces.Simons ...
Benyi, Arpad +3 more
core +1 more source
In this paper, we give advanced study in complex q-rung orthopair 2-tuple linguistic variables (CQRO2-TLVs). The major theme of the paper is to evaluate the novel concept of CQRO2-TLVs and their dominant operational laws so that it can be a competent ...
Zeeshan Ali +2 more
doaj +1 more source
Generalizations of Weighted Means and OWA Operators by Using Unimodal Weighting Vectors [PDF]
Weighted means and ordered weighted averaging (OWA) operators are two families of functions well known in the literature. Given that both are specific cases of the Choquet integral, several procedures for constructing capacities that generalize simultaneously those of the weighted means and the OWA operators have been suggested in recent years. In this
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Fredholm theory of Toeplitz operators on standard weighted Fock spaces [PDF]
We study the Fredholm properties of Toeplitz operators with bounded symbols of vanishing mean oscillation in the complex plane. In particular, we prove that the Toeplitz operator with such a symbol is Fredholm on a standard weighted Fock space if and ...
Al-qabani, Aamena, Virtanen, Jani
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Operator inequalities and gyrolines of the weighted geometric means [PDF]
We consider in this paper two different types of the weighted geometric means of positive definite operators. We show the component-wise bijection of these geometric means and give a geometric property of the spectral geometric mean as a metric midpoint.
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Generalized Fuzzy Bonferroni Harmonic Mean Operators and Their Applications in Group Decision Making
The Bonferroni mean (BM) operator is an important aggregation technique which reflects the correlations of aggregated arguments. Based on the BM and harmonic mean operators, H. Sun and M. Sun (2012) developed the fuzzy Bonferroni harmonic mean (FBHM) and
Jin Han Park, Eun Jin Park
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