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For a finite collection $\mathbf A=(A_i)_{i\in I}$ of locally closed sets in $\mathbb R^n$, $n\geqslant3$, with the sign $\pm1$ prescribed such that the oppositely charged plates are mutually disjoint, we consider the minimum energy problem…

Classical Analysis and ODEs · Mathematics 2018-02-21 Bent Fuglede , Natalia Zorii

In this paper we study the $s$-dimensional Riesz transform of a finite measure $\mu$ in $\mathbf{R}^d$, with $s\in (d-1,d)$. We show that the boundedness of the Riesz transform of $\mu$ implies that a nonlinear potential of exponential type…

Analysis of PDEs · Mathematics 2012-10-10 Benjamin Jaye , Fedor Nazarov , Alexander Volberg

In harmonic analysis, the studies of inequalities of classical operators (= singular, maximal, Riesz potentials etc.) in various function spaces have a very important place. The maturation of many topics in the field of harmonic analysis,…

Analysis of PDEs · Mathematics 2025-04-03 Ferit Gurbuz

We compute the equilibrium measure in dimension d=s+4 associated to a Riesz s-kernel interaction with an external field given by a power of the Euclidean norm. Our study reveals that the equilibrium measure can be a mixture of a continuous…

Probability · Mathematics 2023-02-24 Djalil Chafaï , Edward B. Saff , Robert S. Womersley

In view of a recent example of a positive Radon measure $\mu$ on a domain $D\subset\mathbb R^n$, $n\geqslant3$, such that $\mu$ is of finite energy $E_g(\mu)$ relative to the $\alpha$-Green kernel $g$ on $D$, though the energy of…

Classical Analysis and ODEs · Mathematics 2018-03-30 Bent Fuglede , Natalia Zorii

We study minimum energy problems relative to the $\alpha$-Riesz kernel $|x-y|^{\alpha-n}$, $\alpha\in(0,2]$, over signed Radon measures $\mu$ on $\mathbb R^n$, $n\geqslant3$, associated with a generalized condenser $(A_1,A_2)$, where $A_1$…

Classical Analysis and ODEs · Mathematics 2018-10-26 P. D. Dragnev , B. Fuglede , D. P. Hardin , E. B. Saff , N. Zorii

We study the well-posedness of the Cauchy problem with Dirichlet or Neumann boundary conditions associated to an H 1 -critical semilinear wave equation on a smooth bounded 2D domain {\Omega}. First, we prove an appropriate Strichartz type…

Analysis of PDEs · Mathematics 2010-08-17 S. Ibrahim , R. Jrad

We proceed further with the study of minimum weak Riesz energy problems for condensers with touching plates, initiated jointly with Bent Fuglede (Potential Anal. 51 (2019), 197--217). Having now added to the analysis constraint and external…

Classical Analysis and ODEs · Mathematics 2019-12-02 Natalia Zorii

We study a constrained minimum energy problem with an external field relative to the Riesz kernel of an arbitrary order for a generalized condenser with touching oppositely-charged plates. Conditions sufficient for the solvability of the…

Classical Analysis and ODEs · Mathematics 2015-05-12 Natalia Zorii

For a compact $ d $-dimensional rectifiable subset of $ \mathbb{R}^{p} $ we study asymptotic properties as $ N\to\infty $ of $N$-point configurations minimizing the energy arising from a Riesz $ s $-potential $ 1/r^s $ and an external field…

Classical Analysis and ODEs · Mathematics 2016-10-13 D. P. Hardin , E. B. Saff , O. V. Vlasiuk

This paper explores the connection between a generalized Riesz electric energy and norms on the set of probability measures defined in terms of duality. We derive functional inequalities linking these two notions, recovering and…

Probability · Mathematics 2023-01-24 David García-Zelada , David Padilla-Garza

The purpose of this paper is threefold. First the natural extension of Riesz potentials to the context of quasi metric measure spaces for the class of upper doubling measures are studied on Lebesgue spaces, obtaining necessary and…

Classical Analysis and ODEs · Mathematics 2013-09-17 Bibiana Iaffei , Liliana Nitti

We study the constrained minimum energy problem with an external field relative to the $\alpha$-Riesz kernel $|x-y|^{\alpha-n}$ of order $\alpha\in(0,n)$ for a generalized condenser $\mathbf A=(A_i)_{i\in I}$ in $\mathbb R^n$, $n\geqslant…

Classical Analysis and ODEs · Mathematics 2018-05-01 P. D. Dragnev , B. Fuglede , D. P. Hardin , E. B. Saff , N. Zorii

Fix $d\geq 2$, and $s\in (d-1,d)$. We characterize the non-negative locally finite non-atomic Borel measures $\mu$ in $\mathbb{R}^d$ for which the associated $s$-Riesz transform is bounded in $L^2(\mu)$ in terms of the Wolff energy. This…

Analysis of PDEs · Mathematics 2016-03-01 Benjamin Jaye , Fedor Nazarov , Maria Carmen Reguera , Xavier Tolsa

In this article, we consider an energy-critical complex Ginzburg-Landau equation in the exterior of a smooth compact strictly convex obstacle. We prove the global well-posedness of energy-critical complex Ginzburg-Landau equation in an…

Analysis of PDEs · Mathematics 2026-01-21 Xing Cheng , Chang-Yu Guo , Jiqiang Zheng , Yunrui Zheng

In harmonic analysis, studies of inequalities of Riesz potential in various function spaces have a very important place. Variable exponent Morrey type spaces and the examines of the boundedness of such operators on these spaces have an…

Functional Analysis · Mathematics 2024-11-22 Ferit Gurbuz

In this paper we investigate the extension of the charged Riemannian Penrose inequality to the case where charges are present outside the horizon. We prove a positive result when the charge densities are compactly supported, and present a…

General Relativity and Quantum Cosmology · Physics 2015-06-23 Marcus Khuri , Gilbert Weinstein , Sumio Yamada

We introduce the basic concepts related to subharmonic functions and potentials, mainly for the case of the complex plane and prove the Riesz decomposition theorem. Beyond the elementary facts of the theory we deviate slightly from the…

Classical Analysis and ODEs · Mathematics 2008-05-01 Christian Kuehn

We consider Riesz-type nonlocal interaction energies over polygons. We prove the analog of the Riesz inequality in this discrete setting for triangles and quadrilaterals, and obtain that among all $N$-gons with fixed area, the nonlocal…

Analysis of PDEs · Mathematics 2021-12-13 Marco Bonacini , Riccardo Cristoferi , Ihsan Topaloglu

We consider the Cauchy problem for (energy-subcritical) nonlinear Schr\"odinger equations with sub-quadratic external potentials and an additional angular momentum rotation term. This equation is a well-known model for superfluid quantum…

Analysis of PDEs · Mathematics 2013-02-08 Paolo Antonelli , Daniel Marahrens , Christof Sparber