English

Particles approximation for some 1D kinetic Fokker-Planck equations with singular forces

Analysis of PDEs 2018-10-23 v3

Abstract

In this paper we consider a system of NN particles on the real line evolving according to Newton's law, interacting through a singular (repulsive) force deriving from the potential x1α1α\frac{|x|^{1-\alpha}}{1-\alpha} with α(0,1/8)\alpha \in (0,1/8) and Brownian force. Thanks to the entropy dissipation along the Liouville equation associated to this particles system and a control of the mechanic energy, we establish a quantitative estimate which enables to conclude to a convergence/consistency the particles system toward the limiting Vlasov-Fokker-Planck equation with singular force.

Keywords

Cite

@article{arxiv.1803.04017,
  title  = {Particles approximation for some 1D kinetic Fokker-Planck equations with singular forces},
  author = {Samir Salem},
  journal= {arXiv preprint arXiv:1803.04017},
  year   = {2018}
}

Comments

Huge mathematical gap at the line before the last p11

R2 v1 2026-06-23T00:49:04.172Z