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The paper deals with minimum energy problems in the presence of external fields with respect to the Riesz kernels $|x-y|^{\alpha-n}$, $0<\alpha<n$, on $\mathbb R^n$, $n\geqslant2$. For quite a general (not necessarily lower semicontinuous)…

Classical Analysis and ODEs · Mathematics 2023-03-10 Natalia Zorii

We establish a structure theorem for minimizing sequences for the isoperimetric problem on noncompact $\mathsf{RCD}(K,N)$ spaces $(X,\mathsf{d},\mathcal{H}^N)$. Under the sole (necessary) assumption that the measure of unit balls is…

Differential Geometry · Mathematics 2022-08-30 Gioacchino Antonelli , Stefano Nardulli , Marco Pozzetta

We prove the existence of minimizers of causal variational principles on second countable, locally compact Hausdorff spaces. Moreover, the corresponding Euler-Lagrange equations are derived. The method is to first prove the existence of…

Mathematical Physics · Physics 2022-09-27 Felix Finster , Christoph Langer

This paper is concerned with a study of the classical isoperimetric problem modified by an addition of a non-local repulsive term. We characterize existence, non-existence and radial symmetry of the minimizers as a function of mass in the…

Analysis of PDEs · Mathematics 2013-10-11 Hans Knuepfer , Cyrill B. Muratov

We introduce and study the unconstrained polarization (or Chebyshev) problem which requires to find an $N$-point configuration that maximizes the minimum value of its potential over a set $A$ in $p$-dimensional Euclidean space. This problem…

Classical Analysis and ODEs · Mathematics 2021-06-30 Douglas P. Hardin , Mircea Petrache , Edward B. Saff

We consider the minimizers of $L^{2}$-critical inhomogeneous variational problems with a spatially decaying nonlinear term in an open bounded domain $\Omega$ of $\mathbb{R}^{N}$ which contains $0$. We prove that there is a threshold…

Analysis of PDEs · Mathematics 2022-08-01 Hongfei Zhang , Shu Zhang

Locally isoperimetric $N$-partitions are partitions of the space $\mathbb R^d$ into $N$ regions with prescribed, finite or infinite measure, which have minimal perimeter (which is the $(d-1)$-dimensional measure of the interfaces between…

Analysis of PDEs · Mathematics 2023-12-22 Matteo Novaga , Emanuele Paolini , Vincenzo Maria Tortorelli

We show that in the setting of proper metric spaces one obtains a solution of the classical two-dimensional Plateau problem by minimizing the energy, as in the classical case, once a definition of area (in the sense of convex geometry) has…

Differential Geometry · Mathematics 2015-07-17 Alexander Lytchak , Stefan Wenger

This article is devoted to characterize all possible effective behaviors of composite materials by means of periodic homogenization. This is known as a $G$-closure problem. Under convexity and $p$-growth conditions ($p>1$), it is proved…

Analysis of PDEs · Mathematics 2015-06-26 Jean-Francois Babadjian , Marco Barchiesi

In this paper we consider a very general form of a non-local energy in integral form, which covers most of the usual ones (for instance, the sum of a positive and a negative power). Instead of admitting only sets, or $L^\infty$ functions,…

Analysis of PDEs · Mathematics 2022-07-12 Davide Carazzato , Aldo Pratelli

In this paper, we investigate the constrained minimization problem \begin{equation}\label{eq:0.1} e(a):=\inf_{\{u\in \mathcal{H},\|u\|_2^2=1\}}E_a(u), \end{equation} where the energy functional \begin{equation} \label{eq:0.2}…

Analysis of PDEs · Mathematics 2017-09-13 Jianfu Yang , Jinge Yang

We consider a nonlocal isoperimetric problem defined in the whole space $\R^N$, whose nonlocal part is given by a Riesz potential with exponent $\alpha\in(0, N-1)$. We show that critical configurations with positive second variation are…

Analysis of PDEs · Mathematics 2016-12-21 Marco Bonacini , Riccardo Cristoferi

We investigate a homogenization problem related to a non-local interface energy with a periodic forcing term. We show the existence of planelike minimizers for such energy. Moreover, we prove that, under suitable assumptions on the…

Analysis of PDEs · Mathematics 2026-01-19 Serena Dipierro , Matteo Novaga , Enrico Valdinoci , Riccardo Villa

For the Riesz kernel $\kappa_\alpha(x,y):=|x-y|^{\alpha-n}$ on $\mathbb R^n$, where $n\geqslant2$, $\alpha\in(0,2]$, and $\alpha<n$, we consider the problem of minimizing the Gauss functional…

Classical Analysis and ODEs · Mathematics 2023-12-01 Natalia Zorii

We address in this work the problem of minimizing quantum entropies under local constraints. We suppose macroscopic quantities such as the particle density, current, and kinetic energy are fixed at each point of $\Rm^d$, and look for a…

Mathematical Physics · Physics 2024-06-19 Romain Duboscq , Olivier Pinaud

We consider a non-local interaction energy over bounded densities of fixed mass $m$. We prove that under certain regularity assumptions on the interaction kernel these energies admit minimizers given by characteristic functions of sets when…

Analysis of PDEs · Mathematics 2025-01-01 Davide Carazzato , Aldo Pratelli , Ihsan Topaloglu

This paper is concerned with the existence and mass concentration behavior of minimizers for rotating Bose-Einstein condensations (BECs) with attractive interactions in a bounded domain $\mathcal{D}\subset \mathbb{R}^2$. It is shown that,…

Analysis of PDEs · Mathematics 2023-10-19 Yongshuai Gao , Shuai Li , Peiye Zhong

For suitable kernels on a locally compact space, we develop a theory of inner (outer) pseudo-balayage of quite general signed Radon measures (not necessarily of finite energy) onto quite general sets (not necessarily closed). Such…

Classical Analysis and ODEs · Mathematics 2025-02-17 Natalia Zorii

A locally finite multiset $(\Lambda,c),$ $\Lambda \subset \mathbb R^n, c : \Lambda \rightarrow \{1,...,b\}$ defines a Radon measure $\mu := \sum_{\lambda \in \Lambda} c(\lambda)\, \delta_\lambda$ that is Bohr almost periodic in the sense of…

Classical Analysis and ODEs · Mathematics 2021-07-23 Wayne M. Lawton

In the nonlocal Almgren problem, the goal is to investigate the convexity of a minimizer under a mass constraint via a nonlocal free energy generated with some nonlocal perimeter and convex potential. In the paper, the main result is a…

Analysis of PDEs · Mathematics 2024-08-13 Emanuel Indrei