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We investigate, under a volume constraint and among sets contained in a Euclidean half-space, the minimization problem of an energy functional given by the sum of a capillarity perimeter, a nonlocal interaction term and a gravitational…

偏微分方程分析 · 数学 2024-11-06 Giulio Pascale

This paper investigates the existence and properties of stable, uniformly rotating star-planet systems, i.e. mass ratio is sufficiently small. It is modeled by the Euler-Poisson equations. Following the framework established by McCann for…

偏微分方程分析 · 数学 2026-04-22 Hangsheng Chen

In this article, we consider and analyse a small variant of a functional originally introduced in \cite{BLS,LS} to approximate the (geometric) planar Steiner problem. This functional depends on a small parameter $\varepsilon>0$ and…

偏微分方程分析 · 数学 2016-11-24 Matthieu Bonnivard , Antoine Lemenant , Vincent Millot

We consider in this work the problem of minimizing the von Neumann entropy under the constraints that the density of particles, the current, and the kinetic energy of the system is fixed at each point of space. The unique minimizer is a…

数学物理 · 物理学 2019-10-29 Romain Duboscq , Olivier Pinaud

The Vlasov-Schr\"odinger-Poisson system is a kinetic-quantum hybrid model describing quasi-lower dimensional electron gases. For this system, we construct a large class of 2D kinetic/1D quantum steady states in a bounded domain as…

偏微分方程分析 · 数学 2022-10-18 Younghun Hong , Sangdon Jin

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…

偏微分方程分析 · 数学 2013-10-11 Hans Knuepfer , Cyrill B. Muratov

We construct steady states of the Euler-Poisson system with a barotropic equation of state as minimizers of a suitably defined energy functional. Their minimizing property implies the non-linear stability of such states against general,…

数学物理 · 物理学 2009-11-07 Gerhard Rein

We prove the global stability of the Minkowski space viewed as the trivial solution of the Einstein-Vlasov system. To estimate the Vlasov field, we use the vector field and modified vector field techniques developed in [FJS15; FJS17]. In…

广义相对论与量子宇宙学 · 物理学 2021-03-24 David Fajman , Jérémie Joudioux , Jacques Smulevici

We construct spherically symmetric, static solutions to the Einstein-Vlasov system with non-vanishing cosmological constant $\Lambda$. The results are divided as follows. For small $\Lambda>0$ we show existence of globally regular solutions…

广义相对论与量子宇宙学 · 物理学 2014-09-19 Håkan Andréasson , David Fajman , Maximilian Thaller

This paper includes results centered around three topics, all of them related with the nonlinear stability of equilibria in Poisson dynamical systems. Firstly, we prove an energy-Casimir type sufficient condition for stability that uses…

动力系统 · 数学 2016-08-16 Juan-Pablo Ortega , Víctor Planas-Bielsa , Tudor S. Ratiu

?In this work, we study the orbital stability of stationary solutions to the relativistic Vlasov-Manev system. This system is a kinetic model describing the evolution of a stellar system subject to its own gravity with some relativistic…

偏微分方程分析 · 数学 2013-03-26 Cyril Rigault

We prove the global asymptotic stability of the Minkowski space for the massless Einstein-Vlasov system in wave coordinates. In contrast with previous work on the subject, no compact support assumptions on the initial data of the Vlasov…

偏微分方程分析 · 数学 2022-09-27 Léo Bigorgne , David Fajman , Jérémie Joudioux , Jacques Smulevici , Maximilian Thaller

We establish conditions to ensure the existence of minimizer for a class of mass-constrained functionals involving a nonattractive point interaction in three dimensions. The existence of minimizers follows from the compactness of minimizing…

偏微分方程分析 · 数学 2025-11-18 Gustavo de Paula Ramos

The ancient Gamow liquid drop model of nuclear energies has had a renewed life as an interesting problem in the calculus of variations: Find a set $\Omega \subset \mathbb R^3$ with given volume A that minimizes the sum of its surface area…

数学物理 · 物理学 2015-03-03 Rupert L. Frank , Elliott H. Lieb

In this paper, we establish the stability of the quasineutral limit for the ionic Vlasov-Poisson system under perturbations exponentially small in Wasserstein sense. Notably, we emphasize that exponential smallness is a necessary condition…

偏微分方程分析 · 数学 2024-03-08 Megan Griffin-Pickering , Mikaela Iacobelli

The purpose of this work is to review the status about stationary solutions of the axially symmetric Einstein-Vlasov system with a focus on open problems of both analytical and numerical nature. For the latter we emphasize that the code…

广义相对论与量子宇宙学 · 物理学 2023-10-03 E. Ames , H. Andréasson

We consider the minimizing problem for the energy functional with prescribed mass constraint related to the fractional nonlinear Schr\"odinger equation with periodic potentials. Using the concentration-compactness principle, we show a…

偏微分方程分析 · 数学 2019-12-19 Van Duong Dinh

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,…

偏微分方程分析 · 数学 2023-10-19 Yongshuai Gao , Shuai Li , Peiye Zhong

We prove the stability of de Sitter space-time as a solution to the Einstein-Vlasov system with massless particles. The semi-global stability of Minkowski space-time is also addressed. The proof relies on conformal techniques, namely…

广义相对论与量子宇宙学 · 物理学 2020-05-18 Jérémie Joudioux , Maximilian Thaller , Juan A. Valiente Kroon

We discuss Casimir effect of a massless, minimally coupled scalar field in a 6D warped flux compactification model and its implications for the hierarchy and cosmological constant problems, which are longstanding puzzles in phenomenology…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Masato Minamitsuji