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We consider a variant of Gamow's liquid drop model with an anisotropic surface energy. Under suitable regularity and ellipticity assumptions on the surface tension, Wulff shapes are minimizers in this problem if and only if the surface…

偏微分方程分析 · 数学 2020-10-15 Oleksandr Misiats , Ihsan Topaloglu

We consider the volume-constrained minimization of the sum of the perimeter and the Riesz potential. We add an external potential of the form $\|x\|^{\beta}$ that provides the existence of a minimizer for any volume constraint, and we study…

最优化与控制 · 数学 2018-02-12 François Générau , Edouard Oudet

Let A be a compact set in the right-half plane and $\Gamma(A)$ the set in $\mathbb{R}^{3}$ obtained by rotating A about the vertical axis. We investigate the support of the limit distribution of minimal energy point charges on $\Gamma(A)$…

数学物理 · 物理学 2009-11-13 J. S. Brauchart , D. P. Hardin , E. B. Saff

For a compact set A in Euclidean space we consider the asymptotic behavior of optimal (and near optimal) N-point configurations that minimize the Riesz s-energy (corresponding to the potential 1/t^s) over all N-point subsets of A, where…

数学物理 · 物理学 2007-05-23 D. P. Hardin , E. B. Saff

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…

偏微分方程分析 · 数学 2021-12-13 Marco Bonacini , Riccardo Cristoferi , Ihsan Topaloglu

We consider a shape optimization problem for a hybrid energy combining local confinement and nonlocal Coulomb repulsion. Specifically, for any open set $\Omega \subseteq \mathbb{R}^3$ of prescribed volume, we consider the ground state…

偏微分方程分析 · 数学 2026-04-16 Dario Mazzoleni , Riccardo Moraschi , Berardo Ruffini

We study a geometric variational problem arising from modeling two-dimensional charged drops of a perfectly conducting liquid in the presence of an external potential. We characterize the semicontinuous envelope of the energy in terms of a…

偏微分方程分析 · 数学 2022-08-02 Cyrill B. Muratov , Matteo Novaga , Berardo Ruffini

We discuss a variational model, given by a weighted sum of perimeter, bending and Riesz interaction energies, that could be considered as a toy model for charged elastic drops. The different contributions have competing preferences for…

偏微分方程分析 · 数学 2025-10-15 Michael Goldman , Matteo Novaga , Matthias Röger

We discuss the spatial limit of the quasi-local mass for certain ellipsoids in an asymptotically flat static spherically symmetric spacetime. These ellipsoids are not nearly round but they are of interest as an admissible parametrized…

广义相对论与量子宇宙学 · 物理学 2020-01-09 Xiaokai He , Leong-Fai Wong , Naqing Xie

This paper provides a quantitative version of the recent result of Kn\"upfer and Muratov ({\it Commun. Pure Appl. Math.} {\bf 66} (2013), 1129--1162) concerning the solutions of an extension of the classical isoperimetric problem in which a…

最优化与控制 · 数学 2015-07-01 Cyrill B. Muratov , Anthony Zaleski

We obtain existence of minimizers for the $p$-capacity functional defined with respect to a centrally symmetric anisotropy for $1 < p<\infty$, including the case of a crystalline norm in $\mathbb R^N$. The result is obtained by a…

偏微分方程分析 · 数学 2023-05-08 Esther Cabezas-Rivas , Salvador Moll , Marcos Solera

We consider the variational problem of minimizing an anisotropic perimeter functional under a volume constraint in a Euclidean convex domain. We extend to this setting analytical properties of the isoperimetric profile, topological features…

微分几何 · 数学 2025-04-14 César Rosales

In this paper we prove new multiplicity results for a critical growth anisotropic quasilinear elliptic system that is coupled through a subcritical perturbation term. We identify a certain scaling for the system and a parameter {\gamma}…

偏微分方程分析 · 数学 2024-12-04 Artur Jorge Marinho , Kanishka Perera

We provide new general methods in the calculus of variations for the anisotropic Plateau problem in arbitrary dimension and codimension. A new direct proof of Almgren's 1968 existence result is presented; namely, we produce from a class of…

偏微分方程分析 · 数学 2017-01-25 Jenny Harrison , Harrison Pugh

In this paper, we study anisotropic Bessel potential and Besov spaces, where the anisotropy measures the extra amount of regularity in certain directions. Some basic properties of these spaces are established along with applications to…

经典分析与常微分方程 · 数学 2011-03-02 Timothy Nguyen

We prove a quantitative version of the isoperimetric inequality for a non local perimeter of Minkowski type. We also apply this result to study isoperimetric problems with repulsive interaction terms, under convexity constraints. We show…

偏微分方程分析 · 数学 2017-09-26 Annalisa Cesaroni , Matteo Novaga

In the present article we study the radial symmetry of minimizers of the energy functional, corresponding to the repulsive Hartree equation in external Coulomb potential. To overcome the difficulties, resulting from the "bad" sign of the…

偏微分方程分析 · 数学 2010-12-10 Vladimir Georgiev , George Venkov

In this article we obtain the non - asymptotical low estimations for bilinear Riesz's functional through the Lebesgue spaces norms by means of building of some examples.

泛函分析 · 数学 2009-10-01 E. Ostrovsky L. Sirota

We consider a class of {energy integrals}, associated to nonlinear and non-uniformly elliptic equations, with integrands $f(x,u,\xi)$ satisfying anisotropic $p_i,q$-growth conditions of the form $$ \sum_{i=1}^n \lambda_i (x)|\xi_i|^{p_i}\le…

偏微分方程分析 · 数学 2025-07-09 Stefano Biagi , Giovanni Cupini , Elvira Mascolo

We obtain new asymptotic results about systems of $ N $ particles governed by Riesz interactions involving $ k $-nearest neighbors of each particle as $N\to\infty$. These results include a generalization to weighted Riesz potentials with…

经典分析与常微分方程 · 数学 2023-03-21 Douglas P. Hardin , Edward B. Saff , Oleksandr Vlasiuk