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We consider attractive irreducible conservative particle systems on $\mathbb{Z}$, without necessarily nearest-neighbor jumps or explicit invariant measures. We prove that for such systems, the hydrodynamic limit under Euler time scaling…

概率论 · 数学 2007-05-23 C. Bahadoran , H. Guiol , K. Ravishankar , E. Saada

We review with a tutorial scope the information theory foundations of quantum statistical physics. Only a small proportion of the variables that characterize a system at the microscopic scale can be controlled, for both practical and…

统计力学 · 物理学 2007-05-23 R. Balian

We introduce a new concept of dissipative measure-valued martingale solutions to the stochastic compressible Euler equations. These solutions are weak in the probabilistic sense i.e., the probability space and the driving Wiener process are…

偏微分方程分析 · 数学 2020-12-15 Martina Hofmanova , Ujjwal Koley , Utsab Sarkar

We study the one-dimensional isentropic compressible Euler equations with linear (frictional) damping, subject to multiplicative, white-in-time stochastic forcing. The system is posed on a bounded interval with $L^\infty$ initial data and…

偏微分方程分析 · 数学 2026-03-19 Rongyi Dai , Jeffrey Kuan , Krutika Tawri , Sunčica Čanić , Konstantina Trivisa

We demonstrate that the shallow water moment equations satisfy an auxiliary entropy conservation law, where the entropy function corresponds to the total energy. Additionally, we show that the classical Newtonian slip friction and Manning…

数值分析 · 数学 2026-02-09 Julio Careaga , Patrick Ersing , Julian Koellermeier , Andrew R. Winters

The present work concerns the derivation of a numerical scheme to approximate weak solutions of the Euler equations with a gravitational source term. The designed scheme is proved to be fully well-balanced since it is able to exactly…

数值分析 · 数学 2025-10-23 Christophe Berthon , Victor Michel-Dansac , Andrea Thomann

It is supposed that the exponential multiplier in the method of the non-equilibrium statistical operator (Zubarev`s approach) can be considered as a distribution density of the past lifetime of the system, and can be replaced by an…

统计力学 · 物理学 2009-10-26 V. V. Ryazanov

The entropy shows an unavoidable tendency of disorder in thermostatistics according to the second thermodynamics law. This provides a minimization entropy principle for quantum thermostatistics with the von Neumann entropy and nonextensive…

量子物理 · 物理学 2021-04-09 M. X. Luo , X. Wang

In this paper we apply the entropy principle to the relativistic version of the differential equations describing a standard fluid flow, that is, the equations for mass, momentum, and a system for the energy matrix. These are the second…

数学物理 · 物理学 2018-02-22 Hans Wilhelm Alt

Co-compact entropy is introduced as an invariant of topological conjugation for perfect mappings defined on any Hausdorff space(compactness and metrizability not necessarily required). This is achieved through the consideration of…

动力系统 · 数学 2015-06-12 Zheng Wei , Yangeng Wang , Guo Wei

In this work we analyze the entropic properties of the Euler equations when the system is closed with the assumption of a polytropic gas. In this case, the pressure solely depends upon the density of the fluid and the energy equation is not…

数值分析 · 数学 2019-07-09 Andrew R. Winters , Christof Czernik , Moritz B. Schily , Gregor J. Gassner

On the set of dissipative solutions to the multi-dimensional isentropic Euler equations we introduce a quasi-order by comparing the acceleration at all times. This quasi-order is continuous with respect to a suitable notion of convergence…

偏微分方程分析 · 数学 2022-09-20 Michael Westdickenberg

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

In this note, we prove that the solutions obtained to the spherically symmetric Euler equations in the recent works [2, 3] are weak solutions of the multi-dimensional compressible Euler equations. This follows from new uniform estimates…

偏微分方程分析 · 数学 2019-08-28 Matthew R. I. Schrecker

Entropy is a famous and well established concept in physics and engineering that can be used for explanation of basic fundamentals as well it finds applications in several areas, from quantum physics to astronomy, from network communication…

量子物理 · 物理学 2020-01-03 R. V. Ramos

Reliable data-driven estimation of Shannon entropy from small data sets, where the number of examples is potentially smaller than the number of possible outcomes, is a critical matter in several applications. In this paper, we introduce a…

机器学习 · 计算机科学 2025-12-12 Gabriel F. A. Bastos , Jugurta Montalvão

The low Mach number limit for the full compressible magnetohydrodynamic equations with general initial data is rigorously justified in the whole space $\mathbb{R}^3$. The uniform in Mach number estimates of the solutions in a Sobolev space…

偏微分方程分析 · 数学 2014-04-17 Song Jiang , Qiangchang Ju , Fucai Li , Zhouping Xin

In this paper we establish a new convex integration approach for the barotropic compressible Euler equations in two space dimensions. In contrast to existing literature, our new method generates not only the momentum for given density, but…

偏微分方程分析 · 数学 2024-10-29 Simon Markfelder

We analyze the conservation properties of various discretizations of the system of compressible Euler equations for shock-free flows, with special focus on the treatment of the energy equation and on the induced discrete equations for other…

流体动力学 · 物理学 2024-08-13 Carlo De Michele , Gennaro Coppola

In this paper, we prove the compressible Euler limit from the Boltzmann equation with hard sphere collisional kernel and complete diffusive boundary condition in half-space by employing the Hilbert expansion which includes interior and…

偏微分方程分析 · 数学 2025-08-26 Ning Jiang , Yi-Long Luo , Shaojun Tang