Results 21 to 30 of about 24,314 (174)

Upper Bound for Multi-parameter Iterated Commutators [PDF]

open access: yes, 2015
We show that the product BMO space can be characterized by iterated commutators of a large class of Calder\'on-Zygmund operators. This result follows from a new proof of boundedness of iterated commutators in terms of the BMO norm of their symbol ...
Dalenc, Laurent, Ou, Yumeng
core   +3 more sources

Characterizations for the genuine Calderón-Zygmund operators and commutators on generalized Orlicz-Morrey spaces

open access: yesAdvances in Nonlinear Analysis, 2023
In this article, we show continuity of commutators of Calderón-Zygmund operators [b,T]\left[b,T] with BMO functions in generalized Orlicz-Morrey spaces MΦ,φ(Rn){M}^{\Phi ,\varphi }\left({{\mathbb{R}}}^{n}). We give necessary and sufficient conditions for
Guliyev V. S.   +2 more
doaj   +1 more source

On the equivalence between weak BMO and the space of derivatives of the Zygmund class

open access: yesDemonstratio Mathematica, 2021
In this paper, we will discuss the space of functions of weak bounded mean oscillation. In particular, we will show that this space is the dual space of the special atom space, whose dual space was already known to be the space of derivative of functions
Kwessi Eddy
doaj   +1 more source

Product BMO, Little BMO, and Riesz Commutators in the Bessel Setting [PDF]

open access: yesThe Journal of Geometric Analysis, 2017
In this paper, we study the product BMO space, little bmo space and their connections with the corresponding commutators associated with Bessel operators studied by Weinstein, Huber, and by Muckenhoupt-Stein. We first prove that the product BMO space in the Bessel setting can be used to prove the boundedness of the iterated commutators with the Bessel ...
Duong, Xuan T   +4 more
openaire   +4 more sources

Bruch’s Membrane Opening Minimum Rim Width Measurement with SD-OCT: A Method to Correct for the Opening Size of Bruch’s Membrane

open access: yesJournal of Ophthalmology, 2017
A precise evaluation of the retinal nerve fiber layer thickness (RNFLT) is key for diagnosing and monitoring glaucoma. The Bruch’s membrane opening minimum rim width (BMO-MRW) has been proposed as a reproducible assessment of the optic nerve. The BMO-MRW
Robert Kromer, Martin Stephan Spitzer
doaj   +1 more source

Offset of openings in optic nerve head canal at level of Bruch’s membrane, anterior sclera, and lamina cribrosa

open access: yesScientific Reports, 2021
We compared the central retinal vascular trunk (CRVT) position, as a surrogate of lamina cribrosa (LC) offset, with the anterior scleral opening (ASCO) offset from the Bruch’s membrane opening (BMO).
Kyoung Min Lee   +4 more
doaj   +1 more source

Hybrid Bird Mating Optimizer With Single-Based Algorithms for Combinatorial Optimization Problems

open access: yesIEEE Access, 2021
Bird mating optimizer (BMO) is a population-based metaheuristic that has been recently extended to solve combinatorial optimization problems. Even though the algorithm shows promising performance in solving combinatorial optimization problems, it suffers
Anas Arram, Masri Ayob, Alaa Sulaiman
doaj   +1 more source

Estimates for some convolution operators with singularities of their kernels on spheres

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2011
In the framework of Hardy spaces H p , we study multidimensional convolution operators whose kernels have power-type singularities on a finite union of spheres in Rn.
Alexei V Gil   +2 more
doaj   +3 more sources

A comparison of optic disc area measured by confocal scanning laser tomography versus Bruch’s membrane opening area measured using optical coherence tomography

open access: yesBMC Ophthalmology, 2021
Background Precise optic disc size measurements based on anatomically exact disc margins are fundamental for a correct assessment of glaucoma suspects.
Ioana Maria Cazana   +6 more
doaj   +1 more source

Optimal chiller loading solution for energy conservation using Barnacles Mating Optimizer algorithm

open access: yesResults in Control and Optimization, 2022
This paper proposes an application of evolutionary optimization algorithm, Barnacles Mating Optimizer (BMO) to solve the optimal chiller loading (OCL) problem for minimization of the power consumption in the multi chiller system.
Mohd Herwan Sulaiman, Zuriani Mustaffa
doaj   +1 more source

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