Results 21 to 30 of about 27,509 (180)

On Null-Continuity of Monotone Measures

open access: yesMathematics, 2020
The null-continuity of monotone measures is a weaker condition than continuity from below and possesses many special properties. This paper further studies this structure characteristic of monotone measures.
Jun Li
doaj   +1 more source

Eigenvalue bounds of mixed Steklov problems

open access: yes, 2018
We study bounds on the Riesz means of the mixed Steklov-Neumann and Steklov-Dirichlet eigenvalue problem on a bounded domain $\Omega$ in $\mathbb{R}^n$. The Steklov-Neumann eigenvalue problem is also called the sloshing problem.
Hassannezhad, Asma, Laptev, Ari
core   +1 more source

Convexity Theorems for Riesz Means

open access: yesTokyo Journal of Mathematics, 1991
In a previous note [Mem. Def. Acad. 5, 335--340 (1966; Zbl 0178.05801)], M. Riesz's classical convexity theorem was given a new generalization by the author. We refer to its review quotation (there, \(A^ k(x)\) denotes a Riesz \textit{sum} rather than mean). Theorem II of the present paper improves upon the former result in that the review's condition (
openaire   +2 more sources

Almost Everywhere Convergence of Riesz Means Related to Schrödinger Operator with Constant Magnetic Fields

open access: yesAbstract and Applied Analysis, 2013
We study almost everywhere convergence for Riesz means related to Schrödinger operator with constant magnetic fields. Through researching the weighted norm estimates for the maximal operator with power-weight functions, we obtain the desired result ...
Liurui Deng, Bolin Ma
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Maximizing Riesz means of anisotropic harmonic oscillators

open access: yes, 2018
We consider problems related to the asymptotic minimization of eigenvalues of anisotropic harmonic oscillators in the plane. In particular we study Riesz means of the eigenvalues and the trace of the corresponding heat kernels.
Larson, Simon
core   +1 more source

Weighted decoupling estimates and the Bochner-Riesz means

open access: yesForum of Mathematics, Sigma
We prove new weighted decoupling estimates. As an application, we give an improved sufficient condition for almost everywhere convergence of the Bochner-Riesz means of arbitrary $L^p$ functions for ...
Jongchon Kim
doaj   +1 more source

Fourth-Order Compact Difference Schemes for the Riemann-Liouville and Riesz Derivatives

open access: yesAbstract and Applied Analysis, 2014
We propose two new compact difference schemes for numerical approximation of the Riemann-Liouville and Riesz derivatives, respectively. It is shown that these formulas have fourth-order convergence order by means of the Fourier transform method. Finally,
Yuxin Zhang, Hengfei Ding, Jincai Luo
doaj   +1 more source

Anti-periodic boundary value problems with Riesz–Caputo derivative

open access: yesAdvances in Difference Equations, 2019
This paper is concerned with a class of anti-periodic boundary value problems for fractional differential equations with the Riesz–Caputo derivative, which can reflected both the past and the future nonlocal memory effects.
Fulai Chen, Anping Chen, Xia Wu
doaj   +1 more source

L^p-summability of Riesz means for the sublaplacian on complex spheres

open access: yes, 2008
In this paper we study the L^p-convergence of the Riesz means for the sublaplacian on the sphere S^{2n-1} in the complex n-dimensional space C^n. We show that the Riesz means of order delta of a function f converge to f in L^p(S^{2n-1}) when delta>delta ...
Casarino, Valentina, Peloso, Marco M.
core   +1 more source

Riesz means and bilinear Riesz means on M\'{e}tivier groups

open access: yes, 2022
Comment: arXiv admin note: text overlap with arXiv:1712 ...
Wang, Min, Zhu, Hua
openaire   +1 more source

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