Results 51 to 60 of about 1,883 (143)

O'Neil Inequality for Convolutions Associated with Gegenbauer Differential Operator and some Applications

open access: yesJournal of Mathematical Study, 2020
In this paper we prove an O’Neil inequality for the convolution operator (G-convolution) associated with the Gegenbauer differential operator Gλ. By using an O’Neil inequality for rearrangements we obtain a pointwise rearrangement estimate of the G ...
Vagif S. Guliyev sci
semanticscholar   +1 more source

Rough singular integrals on product spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 67, Page 3671-3684, 2004., 2004
We study the mapping properties of singular integral operators defined by mappings of finite type. We prove that such singular integral operators are bounded on the Lebesgue spaces under the condition that the singular kernels are allowed to be in certain block spaces.
Ahmad Al-Salman, Hussain Al-Qassem
wiley   +1 more source

Boundedness of vector-valued B-singular integral operators in Lebesgue spaces

open access: yesOpen Mathematics, 2017
We study the vector-valued B-singular integral operators associated with the Laplace-Bessel differential operator △B=∑k=1n−1∂2∂xk2+(∂2∂xn2+2vxn∂∂xn),v>0. $$\triangle_{B}=\sum\limits_{k=1}^{n-1}\frac{\partial^{2}}{\partial x_{k}^{2}}+(\frac{\partial^{2}}{\
Keles Seyda, Omarova Mehriban N.
doaj   +1 more source

Stein-Weiss inequality for local mixed radial-angular Morrey spaces

open access: yesOpen Mathematics, 2022
In this article, a generalization of the well-known Stein-Weiss inequality for the fractional integral operator on functions with different integrability properties in the radial and the angular direction in local Morrey spaces is established.
Wei Mingquan, Su Fangming, Sun Lanyin
doaj   +1 more source

Marcinkiewicz integrals along subvarieties on product domains

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 72, Page 4001-4011, 2004., 2004
We study the Lp mapping properties of a class of Marcinkiewicz integral operators on product domains with rough kernels supported by subvarieties.
Ahmad Al-Salman
wiley   +1 more source

Compactness of the commutators of intrinsic square functions on weighted Lebesgue spaces

open access: yesTurkish Journal of Mathematics, 2019
where Γβ(x) = {(y, t) ∈ R + : |x− y| < βt}. Denote Gα,1(f) = Gα(f) . The intrinsic square functions were first introduced by Wilson in order to answer a conjecture proposed by Fefferman and Stein on the boundedness of the Lusin area function S on the ...
Xiao-mei Wu, Xiao Yu
semanticscholar   +1 more source

Boundedness for multilinear Marcinkiewicz operators on certain Hardy spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 2, Page 87-96, 2003., 2003
The boundedness for the multilinear Marcinkiewicz operators on certain Hardy and Herz‐Hardy spaces are obtained.
Liu Lanzhe
wiley   +1 more source

B-maximal commutators, commutators of B-singular integral operators and B-Riesz potentials on B-Morrey spaces

open access: yesOpen Mathematics, 2020
In this article, we consider the Laplace-Bessel differential operatorΔBk,n=∑i=1k∂2∂xi2+γixi∂∂xi+∑i=k+1n∂2∂xi2,γ1>0,…,γk>0.{\Delta }_{{B}_{k,n}}=\mathop{\sum }\limits_{i=1}^{k}\left(\frac{{\partial }^{2}}{\partial {x}_{i}^{2}}+\frac{{\gamma }_{i}}{{x}_{i}}
Hasanov Javanshir J.   +2 more
doaj   +1 more source

Singular integrals with angular integrability

open access: yes, 2016
In this note we prove a class of sharp inequalities for singular integral operators in weighted Lebesgue spaces with angular integrability.Comment: 5 pages - updated ...
Cacciafesta, Federico, Lucà, Renato
core   +1 more source

Weighted estimates of multilinear fractional integral operators for radial functions

open access: yes, 2020
Moen (2009) proved weighted estimates for multilinear fractional integral operators. We consider weighted estimates of these operators for radial functions and power weights and obtain a better result. Our result is a multilinear variant of the one by De
Y. Komori‐Furuya, Enji Sato
semanticscholar   +1 more source

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