Results 11 to 20 of about 3,650 (244)

Boundedness for the Modified Fractional Integral Operator from Mixed Morrey Spaces to the Bounded Mean Oscillation Space and Lipschitz Spaces

open access: yesJournal of Function Spaces, 2022
In this paper, we establish the boundedness of the modified fractional integral operator from mixed Morrey spaces to the bounded mean oscillation space and Lipschitz spaces, respectively.
Mingquan Wei, Lanyin Sun
doaj   +1 more source

On the Dirichlet problem for de ge nerate Beltrami equations

open access: yesДоповiдi Нацiональної академiї наук України, 2023
We study the Dirichlet problem  as   with continuous boundary data  in arbitrary simply connected bounded domains D of the complex plane  where f satisfies the degenerate Beltrami equation   a. e. in D.
V.Ya. Gutlyanskiĭ   +3 more
doaj   +1 more source

Bounded Point Derivations and Functions of Bounded Mean Oscillation [PDF]

open access: yesComputational Methods and Function Theory, 2021
14 pages, 1 ...
openaire   +3 more sources

Weighted bounded mean oscillation and the Hilbert transform [PDF]

open access: yesStudia Mathematica, 1976
Benjamin Muckenhoupt, Richard L Wheeden
exaly   +3 more sources

WEIGHTED VARIABLE HARDY SPACES ASSOCIATED WITH OPERATORS SATISFYING DAVIES-GAFFNEY ESTIMATES

open access: yesПроблемы анализа, 2022
We introduce the weighted variable Hardy space 𝐻(^𝑝(·) _𝐿,𝑤) (ℝ^𝑛) associated with the operator 𝐿, which has a bounded holomorphic functional calculus and fulfills the Davies-Gaffney estimates. More precisely, we establish the molecular characterization
B. Laadjal   +3 more
doaj   +1 more source

On the Space of Bounded Mean Oscillations

open access: yesJournal of the Institute of Engineering, 2021
The space of bounded mean oscillations, abbreviated BMO, was first introduced by F. John and L. Nirenberg in 1961 in the context of partial differential equations. Later, C. Fefferman proved that the BMO is the dual space of well-known Hardy space, popularly known as H1 space and became the center of attraction for mathematicians.
Aarjan Kumar Sunar, Santosh Ghimire
openaire   +2 more sources

An improvement to the John-Nirenberg inequality for functions in critical Sobolev spaces

open access: yesAdvances in Nonlinear Analysis, 2020
It is known that functions in a Sobolev space with critical exponent embed into the space of functions of bounded mean oscillation, and therefore satisfy the John-Nirenberg inequality and a corresponding exponential integrability estimate.
Martínez Ángel D., Spector Daniel
doaj   +1 more source

On the Dirichlet problem for A-harmonic functions

open access: yesДоповiдi Нацiональної академiї наук України, 2023
We study the Dirichlet boundary value problem with continuous boundary data for the A-harmonic equations div[A grad u] = 0 in an arbitrary bounded domain D of the complex plane £ with no boundary component degenerated to a single point.
V.Ya. Gutlyanskiĭ   +3 more
doaj   +1 more source

Some estimates for the commutators of multilinear maximal function on Morrey-type space

open access: yesOpen Mathematics, 2021
In this paper, we study the equivalent conditions for the boundedness of the commutators generated by the multilinear maximal function and the bounded mean oscillation (BMO) function on Morrey space.
Yu Xiao, Zhang Pu, Li Hongliang
doaj   +1 more source

On the John–Nirenberg inequality

open access: yesJournal of Inequalities and Applications, 2020
We present a version of the John–Nirenberg inequality for a sub-class of BMO by estimating the corresponding mean oscillating distribution function via dyadic decomposition.
Hee Chul Pak
doaj   +1 more source

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