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相关论文: Nonlinear Elasticity from Atomistic Mechanics

200 篇论文

In this paper, we derive equations of motion for the normal-order, the symmetric-order and the antinormal-order quantum characteristic functions, applicable for general Hamiltonian systems. We do this by utilizing the `characteristic form'…

量子物理 · 物理学 2008-05-02 Itay Hen , Amir Kalev

This paper presents new analytical results for a class of nonlinear parabolic systems of partial different equations with small cross-diffusion which describe the macroscopic dynamics of a variety of large systems of interacting particles.…

偏微分方程分析 · 数学 2020-03-04 Luca Alasio , Helene Ranetbauer , Markus Schmidtchen , Marie-Therese Wolfram

We devise variants of classical nonconforming methods for symmetric elliptic problems. These variants differ from the original ones only by transforming discrete test functions into conforming functions before applying the load functional.…

数值分析 · 数学 2017-10-11 Andreas Veeser , Pietro Zanotti

We obtain non-symmetric upper and lower bounds on the rate of convergence of general monotone approximation/numerical schemes for parabolic Hamilton Jacobi Bellman Equations by introducing a new notion of consistency. We apply our general…

偏微分方程分析 · 数学 2009-11-11 Guy Barles , Espen R. Jakobsen

This is a continuation of our series of works for the inhomogeneous Boltzmann equation. We study qualitative properties of classical solutions, precisely, the full regularization in all variables, uniqueness, non-negativity and convergence…

偏微分方程分析 · 数学 2015-05-19 Radjesvarane Alexandre , Yoshinori Morimoto , Seiji Ukai , Chao-Jiang Xu , Tong Yang

We consider the Cauchy problem for a second-order nonlinear evolution equation in a Hilbert space. This equation represents the abstract generalization of the Ball integro-differential equation. The general nonlinear case with respect to…

数值分析 · 数学 2022-09-20 Jemal Rogava , Mikheil Tsiklauri , Zurab Vashakidze

This paper deals with the Cauchy-Dirichlet problem for the fractional Cahn-Hilliard equation. The main results consist of global (in time) existence of weak solutions, characterization of parabolic smoothing effects (implying under proper…

偏微分方程分析 · 数学 2018-01-08 Goro Akagi , Giulio Schimperna , Antonio Segatti

We consider an approximation of the linearised equation of the homogeneous Boltzmann equation that describes the distribution of quasiparticles in a dilute gas of bosons at low temperature. The corresponding collision frequency is neither…

偏微分方程分析 · 数学 2014-12-03 Miguel Escobedo , Minh-Binh Tran

Although the post-Newtonian Lagrangian formalism is widely used in relativistic dynamical and statistical studies of test bodies moving around arbitrary mass distributions, the corresponding general Hamiltonian formalism is still relatively…

广义相对论与量子宇宙学 · 物理学 2021-03-23 Ronaldo S. S. Vieira , Javier Ramos-Caro , Alberto Saa

Variational solutions of the Boltzmann equation usually rely on the concept of linear response. We extend the variational approach for tight-binding models at high entropies to a regime far beyond linear response. We analyze both weakly…

量子气体 · 物理学 2015-06-22 Stephan Mandt

The exact solution of the Cauchy problem of the linear theory of elasticity is given in the paper, when the initial data belong to a specific class of functions.

综合数学 · 数学 2017-06-09 Maksut M. Abenov , Nourlan B. Shaltykov

We study the Cauchy problem for a kinetic equation arising in the weak turbulence theory for the cubic nonlinear Schr\"odinger equation. We define suitable concepts of weak and mild solutions and prove local and global well posedness…

数学物理 · 物理学 2013-05-27 Miguel Escobedo , Juan J. L. Velázquez

In this paper we introduce a system coupling a nonlinear Schr\"odinger equation with a system of viscoelasticity, modeling the interaction between short and long waves, acting for instance on media like plasmas or polymers. We prove the…

偏微分方程分析 · 数学 2012-02-07 Paulo Amorim , João-Paulo Dias

We develop a functional renormalization group approach to obtain the time evolution of the momentum distribution function of interacting bosons out of equilibrium. Using an external out-scattering rate as flow parameter, we derive formally…

统计力学 · 物理学 2011-07-19 Thomas Kloss , Peter Kopietz

The general conditions under which the quadratic, uniform and monotonic convergence in the quasilinearization method of solving nonlinear ordinary differential equations could be proved are formulated and elaborated. The generalization of…

计算物理 · 物理学 2009-11-07 V. B. Mandelzweig , F. Tabakin

This paper studies the Cauchy problem for systems of semi-linear wave equations on $\mathbb{R}^{3+1}$ with nonlinear terms satisfying the null conditions. We construct future global-in-time classical solutions with arbitrarily large initial…

偏微分方程分析 · 数学 2015-12-31 Shuang Miao , Long Pei , Pin Yu

The Einstein field equations are derived for a static cylindrically symmetric spacetime with elastic matter. The equations can be reduced to a system of two nonlinear ordinary differential equations and we present analytical and numerical…

广义相对论与量子宇宙学 · 物理学 2014-03-25 I. Brito , J. Carot , F. C. Mena , E. G. L. R. Vaz

This paper concerns the homogenization of Schrodinger equations for non-crystalline matter, that is to say the coefficients are given by the composition of stationary functions with stochastic deformations. Two rigorous results of so-called…

偏微分方程分析 · 数学 2022-06-03 Vernny Ccajma , Wladimir Neves , Jean Silva

We study the discretization of generalized Wasserstein distances with nonlinear mobilities on the real line via suitable discrete metrics on the cone of N ordered particles, a setting which naturally appears in the framework of…

偏微分方程分析 · 数学 2022-09-01 Simone Di Marino , Lorenzo Portinale , Emanuela Radici

This paper presents a nonlinear dynamical model which consists the system of differential and operator equations. Here differential equation contains a nonlinear operator acting in Banach space, a nonlinear operator equation with respect to…

动力系统 · 数学 2018-07-30 Nikolai Sidorov , Denis Sidorov , Yong Li