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This paper is concerned with the analysis of a mathematical model arising in plasma physics, more specifically in fusion research. It directly follows \cite{DHK1}, where the tri-dimensional analysis of a Vlasov-Poisson equation with finite…

偏微分方程分析 · 数学 2010-11-30 Daniel Han-Kwan

We consider the classical compressible Euler's Equations in three space dimensions with an arbitrary equation of state, and whose initial data corresponds to a constant state outside a sphere. Under suitable restriction on the size of the…

偏微分方程分析 · 数学 2013-05-07 Demetrios Christodoulou , Shuang Miao

We revisit a family of infinite-energy solutions of the 3D incompressible Euler equations proposed by Gibbon et al. [9] and shown to blowup in finite time by Constantin [6]. By adding a damping term to the momentum equation we examine how…

偏微分方程分析 · 数学 2016-07-01 William Chen , Alejandro Sarria

This paper is concerned with the multi-dimensional compressible Euler equations with time-dependent damping of the form $-\frac{\mu}{(1+t)^\lambda}\rho\boldsymbol u$ in $\mathbb R^n$, where $n\ge2$, $\mu>0$, and $\lambda\in[0,1)$. When…

偏微分方程分析 · 数学 2020-06-02 Shanming Ji , Ming Mei

We prove that the one-dimensional Euler-Poisson system driven by the Poisson forcing together with the usual γ-law pressure, γ ≥ 1, admits global solutions for a large class of initial data. Thus, the Poisson forcing…

偏微分方程分析 · 数学 2007-05-23 Eitan Tadmor , Dongming Wei

In this work we study the asymptotic behavior of solutions of the incompressible two-dimensional Euler equations in the exterior of a single smooth obstacle when the obstacle becomes very thin tending to a curve. We extend results by…

偏微分方程分析 · 数学 2015-05-13 Christophe Lacave

Two linear, point-symmetric, coupled consolidation model families with various embedding space dimension values (oedometer models - 1, spherical models - 3, cylindrical models - 2), differing in one boundary condition (coupled 1 - constant…

地球物理 · 物理学 2021-03-10 Emoke Imre

When studying out-of-equilibrium systems, one often excites the dynamics in some degrees of freedom while removing the excitation in others through damping. In order for the system to converge to a statistical steady state, the dynamics…

概率论 · 数学 2025-03-26 David P. Herzog , Jonathan C. Mattingly

Can liquid-like and gas-like states be distinguished beyond the critical point, where the liquid-gas phase transition no longer exists and conventionally only a single supercritical fluid phase is defined? Recent experiments and simulations…

统计力学 · 物理学 2024-04-30 Xinyang Li , Yuliang Jin

We prove by using an iteration argument some blow-up results for a semilinear damped wave equation in generalized Einstein-de Sitter spacetime with a time-dependent coefficient for the damping term and power nonlinearity. Then, we…

偏微分方程分析 · 数学 2021-03-15 Alessandro Palmieri

We introduce a damping term for the special relativistic Euler equations in $3$-D and show that the equations reduce to the non-relativistic damped Euler equations in the Newtonian limit. We then write the equations as a symmetric…

广义相对论与量子宇宙学 · 物理学 2015-11-26 Moritz Reintjes

We study the ground state of the one-dimensional extended Hubbard model at half-filling using the entanglement entropy calculated by Density Matrix Renormalization Group (DMRG) techniques. We apply a novel curve fitting and scaling method…

强关联电子 · 物理学 2019-05-29 Jon Spalding , Shan-Wen Tsai , David K Campbell

We study the long time behavior of isentropic compressible Euler equations with linear damping driven by a white-in-time noise, on a one-dimensional torus. We prove the existence of a statistically stationary solution in the class of weak…

偏微分方程分析 · 数学 2025-11-03 Jeffrey Kuan , Krutika Tawri , Konstantina Trivisa

We find a sharp condition on the density-dependent coefficient of damping of a one-dimensional repulsive Euler-Poisson system, which makes it possible to suppress the formation of singularities in the solution of the Cauchy problem with…

偏微分方程分析 · 数学 2021-12-08 Olga S. Rozanova

The entanglement entropy of a pure quantum state of a bipartite system is defined as the von Neumann entropy of the reduced density matrix obtained by tracing over one of the two parts. Critical ground states of local Hamiltonians in one…

强关联电子 · 物理学 2016-09-08 Eduardo Fradkin

This report is the foreword of a series dedicated to stochastic deformations of curves. Problems are set in terms of exclusion processes, the ultimate goal being to derive hydrodynamic limits for these systems after proper scalings. In this…

概率论 · 数学 2007-05-23 Guy Fayolle , Cyril Furtlehner

Damped-driven systems are ubiquitous in engineering and science. Despite the diversity of physical processes observed in a broad range of applications, the underlying instabilities observed in practice have a universal characterization…

适应与自组织系统 · 物理学 2022-11-23 J. Nathan Kutz , Aminur Rahman , Megan R. Ebers , James Koch , Jason J. Bramburger

We discuss a large class of conformally invariant curvature energies for immersed hypersurfaces of dimension 4. The class under study includes various examples that have appeared in the recent literature and which arise from different…

微分几何 · 数学 2025-09-03 Yann Bernard

Due to the potential application of regulating droplet shape by external fields in microfluidic technology and micro devices, it becomes increasingly important to understand the shape formation of a droplet in the presence of an electric…

软凝聚态物质 · 物理学 2024-05-28 Jing Li , Kaiqiang Wen , Ke Xiao , Xiaoming Chen , Chen-Xu Wu

Semilinear elliptic equations of the form $-\Delta u =\lambda|u|^{p-2}u- |u|^{q-2}u$ in bounded and unbounded domains are considered. In the plane of exponents $p\times q$, the so-called critical exponents curve is introduced which…

偏微分方程分析 · 数学 2016-05-27 Yavdat Il'yasov