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We consider a nonlinear Fokker-Planck equation derived from a Cucker-Smale model for flocking with noise. There is a known phase transition depending on the noise between a regime with a unique stationary solution which is isotropic…

偏微分方程分析 · 数学 2026-04-01 Alexandre Surin

We obtain equilibration rates for a one-dimensional nonlocal Fokker-Planck equation with time-dependent diffusion coefficient and drift, modeling the relaxation of a large swarm of robots, feeling each other in terms of their distance,…

偏微分方程分析 · 数学 2023-06-06 Ferdinando Auricchio , Giuseppe Toscani , Mattia Zanella

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

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

This paper is concerned with finding Fokker-Planck equations in $\mathbb{R}^d$ with the fastest exponential decay towards a given equilibrium. For a prescribed, anisotropic Gaussian we determine a non-symmetric Fokker-Planck equation with…

偏微分方程分析 · 数学 2021-09-10 Anton Arnold , Beatrice Signorello

We describe conditions on non-gradient drift diffusion Fokker-Planck equations for its solutions to converge to equilibrium with a uniform exponential rate in Wasserstein distance. This asymptotic behaviour is related to a functional…

概率论 · 数学 2012-09-19 François Bolley , Ivan Gentil , Arnaud Guillin

In this paper we analyze the global existence of classical solutions to the initial boundary-value problem for a nonlinear parabolic equation describing the collective behavior of an ensemble of neurons. These equations were obtained as a…

偏微分方程分析 · 数学 2011-09-08 José A. Carrillo , María d. M. González , Maria P. Gualdani , Maria E. Schonbek

In neuroscience, the distribution of a decision time is modelled by means of a one-dimensional Fokker--Planck equation with time-dependent boundaries and space-time-dependent drift. Efficient approximation of the solution to this equation…

数值分析 · 数学 2023-02-08 Udo Boehm , Sonja Cox , Gregor Gantner , Rob Stevenson

The Integrate-and-Fire model is a Fokker-Planck equation arising in neuroscience. It describes the evolution of the probability density of the neuronal membrane potential and fitting has shown that the inclusion of a em superlinear drift…

偏微分方程分析 · 数学 2026-01-28 Benoît Perthame , Clément Rieutord , Delphine Salort

Populations of spiking neuron models have densities of their microscopic variables (e.g., single-cell membrane potentials) whose evolution fully capture the collective dynamics of biological networks, even outside equilibrium. Despite its…

神经元与认知 · 定量生物学 2021-11-08 Gianni V. Vinci , Maurizio Mattia

The fractional Fokker-Planck equation, which contains a variable diffusion coefficient, is discussed and solved. It corresponds to the L\'evy flights in a nonhomogeneous medium. For the case with the linear drift, the solution is stationary…

统计力学 · 物理学 2009-06-09 Tomasz Srokowski

In this paper, we study the long-time behaviour of solutions to the Vlasov-Fokker-Planck equation where the confining potential is non-convex. This is a nonlocal nonlinear partial differential equation describing the time evolution of the…

偏微分方程分析 · 数学 2017-08-03 Manh Hong Duong , Julian Tugaut

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 consider three classes of linear non-symmetric Fokker-Planck equations having a unique steady state and establish exponential convergence of solutions towards the steady state with explicit (estimates of) decay rates. First,…

偏微分方程分析 · 数学 2023-08-21 Franz Achleitner , Anton Arnold , Dominik Stürzer

The Fokker-Planck equation with diffusion coefficient quadratic in space variable, linear drift coefficient, and nonlocal nonlinearity term is considered in the framework of a model of analysis of asset returns at financial markets. For…

计算金融 · 定量金融 2008-12-10 Alexander Shapovalov , Andrey Trifonov , Elena Masalova

We study the rate of convergence to equilibrium of the solutions to Fokker-Planck type equations with linear drift by means of Cram\'er and Energy distances, which have been recently widely used in problems related to AI, in particular for…

偏微分方程分析 · 数学 2025-10-13 Gennaro Auricchio , Giuseppe Toscani

We consider Fokker-Planck equations in the whole Euclidean space, driven by Levy processes, under the action of confining drifts, as in the classical Ornstein-Ulhenbeck model. We introduce a new PDE method to get exponential or…

偏微分方程分析 · 数学 2023-11-01 Alessio Porretta

We develop a recursive method for perturbative solutions of the Fokker-Planck equation with nonlinear drift. The series expansion of the time-dependent probability density in terms of powers of the coupling constant is obtained by solving a…

统计力学 · 物理学 2009-12-06 Jens Dreger , Axel Pelster , Bodo Hamprecht

We study convergence in variation of probability solutions of nonlinear Fokker-Planck-Kolmogorov equations to stationary solutions. We obtain sufficient conditions for the exponential convergence of solutions to the stationary solution in…

概率论 · 数学 2018-01-09 V. I. Bogachev , M. Röckner , S. V. Shaposhnikov

We derive the first-passage-time statistics of a Brownian motion driven by an exponential time-dependent drift up to a threshold. This process corresponds to the signal integration in a simple neuronal model supplemented with an…

统计力学 · 物理学 2012-04-30 Eugenio Urdapilleta
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