Results 11 to 20 of about 198 (133)
A Characterization of Central BMO Space via the Commutator of Fractional Hardy Operator
Journal of Function Spaces, 2020 This paper is devoted in characterizing the central BMO ℝn space via the commutator of the fractional Hardy operator with rough kernel. Precisely, by a more explicit decomposition of the operator and the kernel function, we will show that if the symbol ...
Lei Zhang, Shaoguang Shi
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Magnetic anomaly inversion through the novel barnacles mating optimization algorithm
Scientific Reports, 2022 Dealing with the ill-posed and non-unique nature of the non-linear geophysical inverse problem via local optimizers requires the use of some regularization methods, constraints, and prior information about the Earth's complex interior. Another difficulty
Hanbing Ai +5 more
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$BMO$ spaces for nondoubling metric measure spaces [PDF]
Publicacions Matemàtiques, 2020 In this article we study the family of $BMO^p$ spaces, $p \geq 1$, in the general context of metric measure spaces. We give a characterization theorem that allows to describe all possible relations between these spaces considered as sets of functions.
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Boundedness and Compactness of Hankel Operators on Large Fock Space
Journal of Function Spaces, 2022 We introduce the BMO spaces and use them to characterize complex-valued functions f such that the big Hankel operators Hf and Hf¯ are both bounded or compact from a weighted large Fock space Fpϕ into a weighted Lebesgue space Lpϕ when 1 ...
Xiaofeng Wang, Zhicheng Zeng
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Variable λ-Central Morrey Space Estimates for the Fractional Hardy Operators and Commutators
Journal of Mathematics, 2022 This paper aims to show that the fractional Hardy operator and its adjoint operator are bounded on central Morrey space with variable exponent. Similar results for their commutators are obtained when the symbol functions belong to λ-central bounded mean ...
Amjad Hussain, Muhammad Asim, Fahd Jarad
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Exploiting an Elitist Barnacles Mating Optimizer implementation for substitution box optimization
ICT Express, 2023 Barnacles Mating Optimizer (BMO) is a new metaheuristic algorithm that suffers from slow convergence and poor efficiency due to its limited capability in exploiting the search space and exploring new promising regions. Addressing these shortcomings, this
Kamal Z. Zamli +7 more
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An Improved Blow-Up Criterion for the Magnetohydrodynamics with the Hall and Ion-Slip Effects
Современная математика: Фундаментальные направления, 2021 In this work, we consider the magnetohydrodynamics system with the Hall and ion-slip effects in R3. The main result is a sufficient condition for regularity on a time interval [0,T] expressed in terms ∞,∞ of the norm of the homogeneous Besov space B˙∞,∞0{
S. Gala, M. A. Ragusa
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Duality and o − O-structure in non reflexive Banach spaces
Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2020 Let E be a Banach space with a supremum type norm induced by a collection of functionals ℒ ⊂ X* where X is a reflexive Banach space.
Luigi D'Onofrio +2 more
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Functional Calculus on BMO and Related Spaces
Journal of Functional Analysis, 2002 It is considered a nonlinear autonomous superposition operator \[ {\mathbf T}_f [g] = f\circ g \] on a certain subspace \(X\) of the space \(BMO({\mathbb R}^n)\). The question is to characterise those Borel measurable functions \(f\) for which the operator \({\mathbf T}_f\) is continuous or differentiable on \(X\).
BOURDAUD G. +2 more
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End Point Estimate of Littlewood-Paley Operator Associated to the Generalized Schrödinger Operator
Journal of Function Spaces, 2021 Let L=−Δ+μ be the generalized Schrödinger operator on ℝd,d≥3, where μ≠0 is a nonnegative Radon measure satisfying certain scale-invariant Kato conditions and doubling conditions.
Yanping Chen, Wenyu Tao
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