English
Related papers

Related papers: Constrained energy problems with external fields

200 papers

We consider a constrained minimal energy problem with an external field over noncompact classes of infinite dimensional vector measures on a locally compact space. The components are positive measures (charges) that are constrained from…

Classical Analysis and ODEs · Mathematics 2010-10-12 Natalia Zorii

The study deals with a minimal energy problem in the presence of an external field over noncompact classes of vector measures of infinite dimension in a locally compact space. The components are positive measures (charges) satisfying…

Classical Analysis and ODEs · Mathematics 2009-11-05 Natalia Zorii

The paper deals with minimum energy problems in the presence of external fields on a locally compact space $X$ with respect to a function kernel $\kappa$ satisfying the energy and consistency principles. For quite a general (not necessarily…

Classical Analysis and ODEs · Mathematics 2022-08-01 Natalia Zorii

The study deals with a minimal energy problem over noncompact classes of infinite dimensional vector measures in a locally compact space. The components are positive measures (charges) satisfying certain normalizing assumptions and…

Classical Analysis and ODEs · Mathematics 2010-01-26 Natalia Zorii

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

Under suitable requirements on a kernel on a locally compact space, we develop a theory of inner (outer) balayage of quite general Radon measures $\omega$ (not necessarily of finite energy) onto quite general sets (not necessarily closed).…

Classical Analysis and ODEs · Mathematics 2025-02-11 Natalia Zorii

Defining a condenser in a locally compact space as a locally finite, countable collection of Borel sets $A_i$, $i\in I$, with the sign $s_i=\pm1$ prescribed such that $A_i\cap A_j=\varnothing$ whenever $s_is_j=-1$, we consider a minimum…

Classical Analysis and ODEs · Mathematics 2019-05-01 Natalia Zorii

For suitable kernels on a locally compact space $X$, we develop a theory of inner balayage of quite general Radon measures $\omega$ (not necessarily of finite energy) to arbitrary $A\subset X$. In the case where $A$ is Borel, this theory…

Classical Analysis and ODEs · Mathematics 2024-06-27 Natalia Zorii

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

The study is motivated by the known fact that, in the noncompact case, the main minimum-problem of the theory of interior capacities of condensers in a locally compact space is in general unsolvable, and this occurs even under very natural…

Classical Analysis and ODEs · Mathematics 2009-02-04 Natalia Zorii

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

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

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 investigate minimum weak $\alpha$-Riesz energy problems with external fields in both the unconstrained and constrained settings for generalized condensers $(A_1,A_2)$ such that the closures of $A_1$ and $A_2$ in $\mathbb R^n$ are allowed…

Classical Analysis and ODEs · Mathematics 2018-10-19 Bent Fuglede , Natalia Zorii

I show that a quantized Klein-Gordon field in Minkowski space obeys an `operational' weak energy condition: the energy of an isolated device constructed to measure or trap the energy in a region, plus the energy it measures or traps, cannot…

General Relativity and Quantum Cosmology · Physics 2009-10-30 Adam D. Helfer

In the theory of inner and outer balayage of positive Radon measures on a locally compact space $X$ to arbitrary $A\subset X$ with respect to suitable, quite general function kernels, developed in a series of the author's recent papers, we…

Classical Analysis and ODEs · Mathematics 2024-07-23 Natalia Zorii

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

The study deals with the theory of interior capacities of condensers in a locally compact space, a condenser being treated here as a countable, locally finite collection of arbitrary sets with the sign +1 or -1 prescribed such that the…

Classical Analysis and ODEs · Mathematics 2009-06-25 Natalia Zorii

The classical local Neumann problem is well studied and solutions of this problem lie, in general, in a Sobolev space. In this work, we focus on nonlocal Neumann problems with measurable, nonnegative kernels, whose solutions require less…

Analysis of PDEs · Mathematics 2022-08-11 Leonhard Frerick , Christian Vollmann , Michael Vu

We develop a theory of inner balayage of a positive Radon measure $\mu$ of finite energy on a locally compact space $X$ to arbitrary $A\subset X$, generalizing Cartan's theory of Newtonian inner balayage on $\mathbb R^n$, $n\geqslant3$, to…

Classical Analysis and ODEs · Mathematics 2020-10-15 Natalia Zorii
‹ Prev 1 2 3 10 Next ›