Results 31 to 40 of about 4,696,878 (266)

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

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

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

The BMO-Dirichlet problem for elliptic systems in the upper half-space and quantitative characterizations of VMO [PDF]

open access: yesAnalysis & PDE, 2016
We prove that for any homogeneous, second order, constant complex coefficient elliptic system $L$, the Dirichlet problem in $\mathbb{R}^{n}_{+}$ with boundary data in BMO is well-posed in the class of functions $u$ with $d\mu_u(x',t):=|\nabla u(x',t)|^2\,
J. M. Martell   +3 more
semanticscholar   +1 more source

Taylor's Theorem for Functionals on BMO with Application to BMO Local Minimizers [PDF]

open access: yes, 2020
In this note two results are established for energy functionals that are given by the integral of $ W(\mathbf x,\nabla \mathbf u(\mathbf x))$ over $\Omega \subset\mathbb{R}^n$ with $\nabla \mathbf u \in BMO(\Omega;{\mathbb R}^{N\times n})$, the space of ...
Spector, Daniel E., Spector, Scott J.
core   +3 more sources

Variable λ-Central Morrey Space Estimates for the Fractional Hardy Operators and Commutators

open access: yesJournal 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
doaj   +1 more source

Exploiting an Elitist Barnacles Mating Optimizer implementation for substitution box optimization

open access: yesICT 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
doaj   +1 more source

Duality and o − O-structure in non reflexive Banach spaces

open access: yesAtti 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
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

Necessary and sufficient conditions for boundedness of commutators of maximal function on the $ p $-adic vector spaces

open access: yesAIMS Mathematics, 2023
In this paper, we first show that the $ p $-adic version of maximal function $ \mathcal{M}_{L\log L}^{p} $ is equivalent to the maximal function $ \mathcal{M}^{p}(\mathcal{M}^{p}) $ and that the class of functions for which the maximal commutators and ...
Qianjun He, Xiang Li
doaj   +1 more source

Home - About - Disclaimer - Privacy