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Single-species reaction-diffusion systems on a one-dimensional lattice are considered, in them more than two neighboring sites interact. Constraints on the interaction rates are obtained, that guarantee the closedness of the time evolution…

凝聚态物理 · 物理学 2009-11-07 M. Khorrami , A. Aghamohammadi , M. Alimohammadi

We study long-time dynamics of a class of abstract second order in time evolution equations in a Hilbert space with the damping term depending both on displacement and velocity. This damping represents the nonlinear strong dissipation…

动力系统 · 数学 2010-10-26 Igor Chueshov , Stanislav Kolbasin

Being concerned with ergodicity of McKean--Vlasov SDEs, we establish a general result on exponential ergodicity in the $L^1$-Wasserstein distance. The result is successfully applied to non-degenerate and multiplicative Brownian motion…

概率论 · 数学 2025-01-23 Xing Huang , Huaiqian Li , Liying Mu

Inspired by experiments on dynamic extensile gels of biofilaments and motors, we propose a model of a network of linear springs with a kinetics consisting of growth at a prescribed rate, death after a lifetime drawn from a distribution, and…

软凝聚态物质 · 物理学 2019-01-25 Daniel Goldstein , Sriram Ramaswamy , Bulbul Chakraborty

Space-time dependence of the anomalous exponent of electric transport in the disorder model is presented. We show that the anomalous exponent depends on time, according to the time-evolution of the number of the effective neighbouring…

无序系统与神经网络 · 物理学 2012-11-06 Takeshi Egami , Koshiro Suzuki , Katsuhiro Watanabe

We present a tractable non-independent increment process which provides a high modeling flexibility. The process lies on an extension of the so-called Harris chains to continuous time being stationary and Feller. We exhibit constructions,…

应用统计 · 统计学 2016-05-19 Michelle Anzarut , Ramses H. Mena

We show that the time-dependence of correlation functions in an extended quantum system in d dimensions, which is prepared in the ground state of some hamiltonian and then evolves without dissipation according to some other hamiltonian, may…

统计力学 · 物理学 2009-11-11 Pasquale Calabrese , John Cardy

We obtain an exact solution of the time-dependent Schroedinger equation for a two-electron system confined to a plane by an isotropic parabolic potential whose curvature is periodically modulated in time. From this solution we compute the…

凝聚态物理 · 物理学 2009-10-31 Irene D'Amico , Giovanni Vignale

In this work, we derive a result of exponential stability for a coupled system of partial differential equations (PDEs) which governs a certain fluid-structure interaction. In particular, a three-dimensional Stokes flow interacts across a…

偏微分方程分析 · 数学 2014-03-26 George Avalos , Francesca Bucci

We simulate a growth model with restricted surface relaxation process in d=1 and d=2, where d is the dimensionality of a flat substrate. In this model, each particle can relax on the surface to a local minimum, as the Edwards-Wilkinson…

统计力学 · 物理学 2009-11-07 T. J. da Silva , J. G. Moreira

We extend the theory of structured deformations to the setting of linearized elasticity by providing an integral representation for the underlying energy that features bulk and surface contributions. Our derivation is obtained both via a…

偏微分方程分析 · 数学 2026-01-19 Manuel Friedrich , José Matias , Elvira Zappale

A unified classification framework for models of extended plasticity is presented. The models include well known micromorphic and strain gradient plasticity formulations. A unified treatment is possible due to the representation of strain…

软凝聚态物质 · 物理学 2018-08-01 Andrew McBride , B. Daya Reddy , Paul Steinmann

We study the Einstein-Vlasov system coupled to a nonlinear scalar field with a nonnegative potential in locally spatially homogeneous spacetime, as an expanding cosmological model. It is shown that solutions of this system exist globally in…

广义相对论与量子宇宙学 · 物理学 2009-11-10 Hayoung Lee

We consider the dynamics of the disordered trap model, which is known to be completely out-of-equilibrium and to present strong localization effects in its aging phase. We are interested into the influence of an external force, when it is…

凝聚态物理 · 物理学 2009-11-10 Cecile Monthus

We present a general theory of exceptional points of degeneracy (EPD) in periodically time-variant systems that do not necessarily require the presence of loss or gain, and we show that even a single resonator with a time-periodic component…

In this paper we study ergodic backward stochastic differential equations (EBSDEs) dropping the strong dissipativity assumption needed in the previous work. In other words we do not need to require the uniform exponential decay of the…

概率论 · 数学 2010-04-12 Arnaud Debussche , Ying Hu , Gianmario Tessitore

In this paper, we analyze a semilinear damped second order evolution equation with time-dependent time delay and time-dependent delay feedback coefficient. The nonlinear term satisfies a local Lipschitz continuity assumption. Under…

偏微分方程分析 · 数学 2023-03-28 Cristina Pignotti

This paper explores the exponential stability of two nonlinear wave equations coupled through their velocities. The analysis is divided into two main cases. First, we consider a system where one equation is damped, while the other…

偏微分方程分析 · 数学 2025-07-11 Alhabib Moumni , Cristina Pignotti , Jawad Salhi , Mouhcine Tilioua

We study an influence of the quenched extended defects on the critical dynamics of the d=3-dimensional systems with m-component non-conserved order parameter (model A dynamics). Considering defects to be correlated in \epsilon_d dimensions…

无序系统与神经网络 · 物理学 2009-09-15 V. Blavatska , M. Dudka , R. Folk , Yu. Holovatch

A framework for exponential time discretization of the multilayer rotating shallow water equations is developed in combination with a mimetic discretization in space. The method is based on a combination of existing exponential time…

数值分析 · 数学 2019-08-27 Konstantin Pieper , K. Chad Sockwell , Max Gunzburger