中文
相关论文

相关论文: Asymptotic gradient flow structures of a nonlinear…

200 篇论文

A recently introduced nonlinear Fokker-Planck equation, derived directly from a master equation, comes out as a very general tool to describe phenomenologically systems presenting complex behavior, like anomalous diffusion, in the presence…

统计力学 · 物理学 2009-11-13 Veit Schwammle , Evaldo M. F. Curado , Fernando D. Nobre

Inspired by the modeling of grain growth in polycrystalline materials, we consider a nonlinear Fokker-Plank model, with inhomogeneous diffusion and with variable mobility parameters. We develop large time asymptotic analysis of such…

偏微分方程分析 · 数学 2022-06-24 Yekaterina Epshteyn , Chang Liu , Chun Liu , Masashi Mizuno

This paper investigates the gradient flow structure, well-posedness, and asymptotic behavior of the Fokker-Planck equation defined on locally uniformly finite graphs, which is highly non-trivial compared with the finite case. We first…

概率论 · 数学 2025-11-13 Cong Wang

We propose a general method to identify nonlinear Fokker--Planck--Kolmogorov equations (FPK equations) as gradient flows on the space of probability measures on $\mathbb{R}^d$ with a natural differential geometry. Our notion of gradient…

偏微分方程分析 · 数学 2024-11-11 Marco Rehmeier , Michael Röckner

We study the nonlinear Fokker-Planck equation on graphs, which is the gradient flow in the space of probability measures supported on the nodes with respect to the discrete Wasserstein metric. The energy functional driving the gradient flow…

动力系统 · 数学 2017-09-26 Shui-Nee Chow , Wuchen Li , Haomin Zhou

We interpret a class of nonlinear Fokker-Planck equations with reaction as gradient flows over the space of Radon measures equipped with the recently introduced Hellinger-Kantorovich distance. The driving entropy of the gradient flow is not…

泛函分析 · 数学 2019-08-13 Stanislav Kondratyev , Dmitry Vorotnikov

We analyze the diffusion of a Brownian particle in a fluid under stationary flow. By using the scheme of non-equilibrium thermodynamics in phase space, we obtain the Fokker-Planck equation which is compared with others derived from kinetic…

统计力学 · 物理学 2016-08-16 I. Santamaría-Holek , D. Reguera , J. M. Rubí

In this paper, we study the asymptotic behavior of a class of nonlinear Fokker-Planck type equations in a bounded domain with periodic boundary conditions. The system is motivated by our study of grain boundary dynamics, especially under…

偏微分方程分析 · 数学 2025-03-04 Yekaterina Epshteyn , Chun Liu , Masashi Mizuno

Many physical, biological or social systems are governed by history-dependent dynamics or are composed of strongly interacting units, showing an extreme diversity of microscopic behaviour. Macroscopically, however, they can be efficiently…

综合物理 · 物理学 2018-02-08 Dániel Czégel , Sámuel G Balogh , Péter Pollner , Gergely Palla

The Fokker-Planck equation provides complete statistical description of a particle undergoing random motion in a solvent. In the presence of Lorentz force due to an external magnetic field, the Fokker-Planck equation picks up a tensorial…

We propose a systematic method to derive the asymptotic behaviour of the persistence distribution, for a large class of stochastic processes described by a general Fokker-Planck equation in one dimension. Theoretical predictions are…

统计力学 · 物理学 2009-10-31 Jean Farago

A Fokker-Planck type equation for interacting particles with exclusion principle is analysed. The nonlinear drift gives rise to mathematical difficulties in controlling moments of the distribution function. Assuming enough initial moments…

偏微分方程分析 · 数学 2008-01-21 José A. Carrillo , Philippe Laurençot , Jesús Rosado

We prove the well-posedness of entropy solutions for a wide class of nonlocal transport equations with nonlinear mobility in one spatial dimension. The solution is obtained as the limit of approximations constructed via a deterministic…

偏微分方程分析 · 数学 2025-09-25 Simone Fagioli , Oliver Tse

A nonlinear parabolic equation of sixth order is analyzed. The equation arises as a reduction of a model from quantum statistical mechanics, and also as the gradient flow of a second-order information functional with respect to the…

偏微分方程分析 · 数学 2021-08-25 Daniel Matthes , Eva-Maria Rott

Recently a new type of Kramers-Fokker-Planck Equation has been proposed [R. Friedrich et al. Phys. Rev. Lett. {\bf 96}, 230601 (2006)] describing anomalous diffusion in external potentials. In the present paper the explicit cases of a…

统计力学 · 物理学 2007-05-23 S. Eule , R. Friedrich , F. Jenko

Equation of long-range particle drift and diffusion on three-dimensional physical lattice is suggested. This equation can be considered as a lattice analogof space-fractional Fokker-Planck equation for continuum. The lattice approach gives…

统计力学 · 物理学 2015-03-13 Vasily E. Tarasov

This paper is devoted to a fundamental solution of a nonlinear kinetic equation involving a porous medium or fast diffusion operator acting on velocities. Such a nonlinearity has interesting scaling properties, which result in a…

偏微分方程分析 · 数学 2026-03-30 Giovanni Brigati , Guillaume Carlier , Jean Dolbeault

We consider coupled models for particulate flows, where the disperse phase is made of particles with distinct sizes. We are thus led to a system coupling the incompressible Navier-Stokes equations to the multi-component Vlasov-Fokker-Planck…

数值分析 · 数学 2022-12-20 Shi Jin , Yiwen Lin

We study the asymptotic behavior of Fokker-Planck equations with spatially inhomogeneous nonlinear diffusion, based on the energy dissipation law. First, we consider the Fokker-Planck equation with porous-medium-type nonlinear diffusion…

偏微分方程分析 · 数学 2025-12-16 Kouta Araki , Masashi Mizuno

The stochastic transport of suspended particles through a periodic pattern of obstacles in microfluidic devices is investigated by means of the Fokker-Planck equation. Asymmetric arrays of obstacles have been shown to induce the continuous…

软凝聚态物质 · 物理学 2009-11-11 Zhigang Li , German Drazer
‹ 上一页 1 2 3 10 下一页 ›