Results 1 to 10 of about 146 (101)

A note on Hardy-Littlewood maximal operators

open access: yesJournal of Inequalities and Applications, 2016
In this paper, we will prove that, for 1 < p < ∞ $1 ...
Mingquan Wei   +3 more
doaj   +3 more sources

Variation Inequalities for the Hardy-Littlewood Maximal Function on Finite Directed Graphs

open access: yesMathematics, 2022
In this paper, the authors establish the bounds for the Hardy-Littlewood maximal operator defined on a finite directed graph G→ in the space BVp(G→) of bounded p-variation functions.
Feng Liu, Xiao Zhang
doaj   +3 more sources

The Equivalence of Operator Norm between the Hardy-Littlewood Maximal Function and Truncated Maximal Function on the Heisenberg Group

open access: yesJournal of Function Spaces, 2021
In this article, we define a kind of truncated maximal function on the Heisenberg space by Mγcfx ...
Xiang Li, Xingsong Zhang
doaj   +1 more source

Centered Hardy-Littlewood maximal function on product manifolds

open access: yesAdvances in Nonlinear Analysis, 2022
Let X be the direct product of Xi where Xi is smooth manifold for 1 ≤ i ≤ k. As is known, if every Xi satisfies the doubling volume condition, then the centered Hardy-Littlewood maximal function M on X is weak (1,1) bounded.
Zhao Shiliang
doaj   +1 more source

On the boundedness of the fractional maximal operator on global Orlicz-Morrey spaces

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2021
The article deals with the global Orlia-Morrey spaces GMΦ,ϕ,θ(Rn). We find sufficient conditions on pairs of functions (ϕ, η) and (Φ, Ψ), which ensure the boundedness of the fractional maximal operator Mα from GMΦ,ϕ,θ(Rn) in GMΨ,η,θ(Rn).
N.А. Bokayev, А.А. Khairkulova
doaj   +1 more source

Kolyada inequality for partial moduli of smoothness of functions with lacunary Fourier coefficients [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2022
The problem of estimating the moduli of smoothness of functions from $L_q$  in terms of moduli of smoothness from $L_p$  is well known. The initial stage in estimating the moduli of smoothness was the study of properties of functions from ...
Simonov, Boris V.   +2 more
doaj   +1 more source

A pointwise estimate for pseudo-differential operators

open access: yesBulletin of Mathematical Sciences, 2023
Let [Formula: see text] be a pseudo-differential operator defined by the symbol [Formula: see text] with [Formula: see text] [Formula: see text]. It is shown that if [Formula: see text], then the operator satisfies the following pointwise estimate: (Tau)♯
Guangqing Wang, Wenyi Chen
doaj   +1 more source

Generalization and Modification of Hardy-Littlewood Maximal Functions

open access: yesJournal of Applied Sciences and Environmental Management, 2018
The purpose of this paper is to provide the different types of Hardy-Littlewood Maximal Functions, the relationship between them and the corresponding extension of ℝn of the Hardy-Littlewood maximal function.
HS Adewinbi, OJ Peter
doaj   +1 more source

BMO Functions Generated by AXℝn Weights on Ball Banach Function Spaces

open access: yesJournal of Function Spaces, 2021
Let X be a ball Banach function space on ℝn. We introduce the class of weights AXℝn. Assuming that the Hardy-Littlewood maximal function M is bounded on X and X′, we obtain that BMOℝn=αlnω:α≥0,ω∈AXℝn.
Ruimin Wu, Songbai Wang
doaj   +1 more source

The Boundedness of the Hardy-Littlewood Maximal Operator and Multilinear Maximal Operator in Weighted Morrey Type Spaces

open access: yesJournal of Function Spaces, 2014
The aim of this paper is to prove the boundedness of the Hardy-Littlewood maximal operator on weighted Morrey spaces and multilinear maximal operator on multiple weighted Morrey spaces. In particular, the result includes the Komori-Shirai theorem and the
Takeshi Iida
doaj   +1 more source

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