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The convergence to the stationary regime is studied for Stochastic Differential Equations driven by an additive Gaussian noise and evolving in a semi-contractive environment, i.e. when the drift is only contractive out of a compact set but…

概率论 · 数学 2020-06-04 Fabien Panloup , Alexandre Richard

We investigate a Poisson-Nernst-Planck type system in three spatial dimensions where the strength of the electric drift depends on a possibly small parameter and the particles are assumed to diffuse quadratically. On grounds of the global…

偏微分方程分析 · 数学 2015-10-23 Jonathan Zinsl

A class of linear kinetic Fokker-Planck equations with a non-trivial diffusion matrix and with periodic boundary conditions in the spatial variable is considered. After formulating the problem in a geometric setting, the question of the…

数学物理 · 物理学 2012-10-03 Simone Calogero

We study the existence and long-time asymptotics of weak solutions to a system of two nonlinear drift-diffusion equations that has a gradient flow structure in the Wasserstein distance. The two equations are coupled through a…

偏微分方程分析 · 数学 2021-12-14 Lisa Beck , Daniel Matthes , Martina Zizza

In this note, we consider a kinetic Fokker-Planck-Alignment equation with Rayleigh-type friction and self-propulsion force which is derived from general environmental averaging models. We show the exponential relaxation in time toward…

偏微分方程分析 · 数学 2023-10-26 Vinh Nguyen

We derive rates of convergence for limit theorems that reveal the intricate structure of the phase transitions in a mean-field version of the Blume-Emery-Griffith model. The theorems consist of scaling limits for the total spin. The model…

概率论 · 数学 2015-06-15 Peter Eichelsbacher , Bastian Martschink

We show existence and uniqueness of a stationary state for a kinetic Fokker-Planck equation modelling the fibre lay-down process in the production of non-woven textiles. Following a micro-macro decomposition, we use hypocoercivity…

偏微分方程分析 · 数学 2017-04-17 Emeric Bouin , Franca Hoffmann , Clément Mouhot

We introduce in this paper a new approach to the problem of the convergence to equilibrium for kinetic equations. The idea of the approach is to prove a 'weak' coercive estimate, which implies exponential or polynomial convergence rate. Our…

偏微分方程分析 · 数学 2012-08-07 Minh-Binh Tran

This paper concerns the proof of the exponential rate of convergence of the solution of a Fokker-Planck equation, with a drift term not being the gradient of a potential function and endowed by Robin type boundary conditions. This kind of…

偏微分方程分析 · 数学 2016-03-24 J-A Carrillo , Simona Mancini , M. -B Tran

The drift method, introduced by the second author, provides a new formulation of the Einstein constraint equations, either in vacuum or with matter fields. The natural of the geometry underlying this method compensates for its slightly…

广义相对论与量子宇宙学 · 物理学 2018-05-31 Mike Holst , David Maxwell , Rafe Mazzeo

We prove the exponential convergence to the equilibrium, quantified by R\'enyi divergence, of the solution of the Fokker-Planck equation with drift given by the gradient of a strictly convex potential. This extends the classical exponential…

偏微分方程分析 · 数学 2019-06-19 Yu Cao , Jianfeng Lu , Yulong Lu

Well-posedness of a reversible variant of the Gray-Scott model is shown, along with the convergence of each trajectory to one of the two spatially homogeneous steady states. The principle of linearized stability provides the local…

偏微分方程分析 · 数学 2025-12-04 Philippe Laurençot , Christoph Walker

We consider a thermodynamically correct framework for electro-energy-reaction-diffusion systems, which feature a monotone entropy functional while conserving the total charge and the total energy. For these systems, we construct a relative…

偏微分方程分析 · 数学 2025-08-08 Michael Kniely

This paper provides a new tauberian approach to the study of quantitative time asymptotics of collisionless transport semigroups with general diffuse boundary operators. We obtain an (almost) optimal algebraic rate of convergence to…

偏微分方程分析 · 数学 2021-04-15 Bertrand Lods , Mustapha Mokhtar-Kharroubi

Entropic optimal transport problems play an increasingly important role in machine learning and generative modelling. In contrast with optimal transport maps which often have limited applicability in high dimensions, Schrodinger bridges can…

概率论 · 数学 2026-01-21 Pierre Del Moral , Ajay Jasra

This paper is concerned with a modified entropy method to establish the large-time convergence towards the (unique) steady state, for kinetic Fokker-Planck equations with non-quadratic confinement potentials in whole space. We extend…

偏微分方程分析 · 数学 2024-01-23 Anton Arnold , Gayrat Toshpulatov

We study the convergence rate of Sinkhorn's algorithm for solving entropy-regularized optimal transport problems when at least one of the probability measures, $\mu$, admits a density over $\mathbb{R}^d$. For a semi-concave cost function…

最优化与控制 · 数学 2025-07-21 Lénaïc Chizat , Alex Delalande , Tomas Vaškevičius

We prove exponential convergence to equilibrium for the Fredrikson-Andersen one spin facilitated model on bounded degree graphs satisfying a subexponential, but larger than polynomial, growth condition. This was a classical conjecture…

概率论 · 数学 2016-09-07 Thomas Mountford , Glauco Valle

We introduce a new probabilistic approach to quantify convergence to equilibrium for (kinetic) Langevin processes. In contrast to previous analytic approaches that focus on the associated kinetic Fokker-Planck equation, our approach is…

概率论 · 数学 2018-07-02 Andreas Eberle , Arnaud Guillin , Raphael Zimmer

In this paper, we derive exponential ergodicity in relative entropy for general kinetic SDEs under a partially dissipative condition. It covers non-equilibrium situations where the forces are not of gradient type and the invariant measure…

概率论 · 数学 2025-07-10 Xing Huang , Eva Kopfer , Pierre Monmarché , Panpan Ren
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