Results 61 to 70 of about 8,913,878 (219)

The (p, q, l) -properties of a generalized Riesz potential

open access: yes, 2004
The generalized Riesz potential defined on Sobolev space W-p(l)(R") is constructed and for this potential the theorem of Hardy-Littlewood-Sobolev type have established. (C) 2003 Elsevier Inc. All rights reserved.The generalized Riesz potential defined on
Cinar, I
core   +1 more source

Inequalities for integral operators in Hölder–Morrey spaces on differential forms

open access: yesJournal of Inequalities and Applications, 2023
The Hölder–Morrey spaces Λ κ p , τ ( Ω , ∧ l ) $\Lambda _{\kappa}^{p,\tau}(\Omega ,\wedge ^{l})$ are proposed in this paper. The imbedding inequalities for homotopy operator are derived in Hölder–Morrey spaces on differential forms. The Hölder continuity
Xuexin Li, Jianwei Wang, Ning Pan
doaj   +1 more source

Improving the Finite Sample Estimation of Average Treatment Effects Using Double/Debiased Machine Learning With Propensity Score Calibration

open access: yesJournal of Applied Econometrics, Volume 41, Issue 5, Page 613-626, August 2026.
ABSTRACT Double/debiased machine learning (DML) uses for estimating an average treatment effect (ATE) a double‐robust score function that relies on the prediction of nuisance functions, such as the propensity score, which is the probability of treatment assignment given covariates.
Daniele Ballinari, Nora Bearth
wiley   +1 more source

Multilinear Riesz Potential on Morrey-Herz Spaces with Non-Doubling Measures

open access: yesJournal of Inequalities and Applications, 2010
The authors consider the multilinear Riesz potential operator defined by , where denotes the -tuple , the nonnegative integers with , , and is a nonnegative -dimensional Borel measure.
Tao Xiangxing, Zheng Taotao, Shi Yanlong
doaj   +2 more sources

A SOBOLEV TYPE THEOREM IN VARIABLE EXPONENT LEBESGUE SPACES WITH WEIGHTS IN SIGMUND - BARI - STECHKIN CLASS

open access: yesСовременная наука и инновации, 2022
For the Riesz potential operator there are proved weighted estimates within the framework of weighted Lebesgue spaces with variable exponent. In case is a bounded do-main, the order potential is allowed to be variable as well.
Boris G. Vaculov   +2 more
doaj  

Shape Derivatives of the Eigenvalues of the de Rham Complex for Lipschitz Deformations and Variable Coefficients: Part II

open access: yesMathematical Methods in the Applied Sciences, Volume 49, Issue 12, Page 14244-14265, August 2026.
ABSTRACT In this second part of our series of papers, we develop an abstract framework suitable for de Rham complexes that depend on a parameter belonging to an arbitrary Banach space. Our primary focus is on spectral perturbation problems and the differentiability of eigenvalues with respect to perturbations of the involved parameters. As a byproduct,
Pier Domenico Lamberti   +2 more
wiley   +1 more source

Riesz-Fejér Inequalities for Harmonic Functions [PDF]

open access: yes, 2018
© 2018, Springer Nature B.V. In this article, we prove the Riesz - Fejér inequality for complex-valued harmonic functions in the harmonic Hardy space hp for all p > 1. The result is sharp for p ∈ (1,2]. Moreover, we prove two variant forms of Riesz-Fejér

core  

A comparison of Bessel and Riesz potentials

open access: yesActa Scientiarum Mathematicarum
How large is the Bessel potential, $G_{α,μ}f$, compared to the Riesz potential, $I_αf$? In this paper, we show that if $I_αf\in L^p$ with $0<α<1$ and $p>1$, then the following interpolation bound holds: \[\Vert G_{α,μ}f\Vert_p\leq C(ω(I_αf,1/μ)_p)^α\cdot\Vert I_αf\Vert^{1-α}_p.\] Here $ω(f,t)_p$ is the $L^p$ modulus of continuity. However, if
openaire   +2 more sources

A Physical Interpretation of Riesz Potential

open access: yesIOSR Journal of Mathematics, 2016
In this paper we add a physical meaning to the Riesz potential by using Newtonian force fields due to a body and velocity fields of any fluid. To do this, we firstly give some properties of Newtonian force fields and correspondingly Newtonian potentials.
Esin İnan Eskitaşçioğlu   +1 more
openaire   +1 more source

Linear Toroidal‐Inertial Waves on A Differentially Rotating Sphere with Application to Helioseismology: Modeling, Forward and Inverse Problems

open access: yesMathematical Methods in the Applied Sciences, Volume 49, Issue 12, Page 14122-14148, August 2026.
ABSTRACT This paper develops a mathematical framework for interpreting observations of solar inertial waves in an idealized setting. Under the assumption of purely toroidal linear waves on the sphere, the stream function of the flow satisfies a fourth‐order scalar equation.
Tram Thi Ngoc Nguyen   +3 more
wiley   +1 more source

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