Results 21 to 30 of about 12,093 (237)

Weighted Central BMO Spaces and Their Applications [PDF]

open access: yesJournal of Function Spaces, 2021
In this paper, the central BMO spaces with Muckenhoupt A p weight is
Huan Zhao, Zongguang Liu
openaire   +3 more sources

On three-dimensional Hall-magnetohydrodynamic equations with partial dissipation

open access: yesBoundary Value Problems, 2022
In this paper, we address the Hall-MHD equations with partial dissipation. Applying some important inequalities (such as the logarithmic Sobolev inequality using BMO space, bilinear estimates in BMO space, Young’s inequality, cancellation property ...
Baoying Du
doaj   +1 more source

BMO Spaces on Weighted Homogeneous Trees [PDF]

open access: yesThe Journal of Geometric Analysis, 2020
We consider an infinite homogeneous tree $\mathcal V$ endowed with the usual metric $d$ defined on graphs and a weighted measure $ $. The metric measure space $(\mathcal V,d, )$ is nondoubling and of exponential growth, hence the classical theory of Hardy and $BMO$ spaces does not apply in this setting.
Arditti L., Tabacco A., Vallarino M.
openaire   +4 more sources

p-Adic BMO and VMO functions

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2011
Spaces of p-adic BMO and VMO functions are considered. It is proved that locally constant functions are dense in VMO space under BMO norm.
E. I. Zelenov
doaj   +3 more sources

A Characterization of Central BMO Space via the Commutator of Fractional Hardy Operator

open access: yesJournal 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
doaj   +1 more source

Magnetic anomaly inversion through the novel barnacles mating optimization algorithm

open access: yesScientific 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
doaj   +1 more source

An Improved Blow-Up Criterion for the Magnetohydrodynamics with the Hall and Ion-Slip Effects

open access: yesСовременная 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
doaj   +1 more source

BMO is the intersection of two translates of dyadic BMO [PDF]

open access: yes, 2003
Let T be the unite circle on $R^2$. Denote by BMO(T) the classical BMO space and denote by BMO_D(T) the usual dyadic BMO space on T.
Mei, Tao
core   +3 more sources

Boundedness and Compactness of Hankel Operators on Large Fock Space

open access: yesJournal 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
doaj   +1 more source

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

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