Partial differential equations and stochastic methods in molecular dynamics

T Lelievre, G Stoltz - Acta Numerica, 2016 - cambridge.org
The objective of molecular dynamics computations is to infer macroscopic properties of
matter from atomistic models via averages with respect to probability measures dictated by …

Quantitative Harris-type theorems for diffusions and McKean–Vlasov processes

A Eberle, A Guillin, R Zimmer - Transactions of the American Mathematical …, 2019 - ams.org
We consider ${\mathbb {R}}^ d $-valued diffusion processes of type\begin {align*} dX_t\=\b
(X_t) dt+ dB_t.\end {align*} Assuming a geometric drift condition, we establish contractions of …

Asymptotic coupling and a general form of Harris' theorem with applications to stochastic delay equations

M Hairer, JC Mattingly, M Scheutzow - Probability theory and related fields, 2011 - Springer
There are many Markov chains on infinite dimensional spaces whose one-step transition
kernels are mutually singular when starting from different initial conditions. We give results …

Rate of convergence for ergodic continuous Markov processes: Lyapunov versus Poincaré

D Bakry, P Cattiaux, A Guillin - Journal of Functional Analysis, 2008 - Elsevier
We study the relationship between two classical approaches for quantitative ergodic
properties: the first one based on Lyapunov type controls and popularized by Meyn and …

[PDF][PDF] Convergence of Markov processes

M Hairer - Lecture notes, 2010 - hairer.org
The aim of this minicourse is to provide a number of tools that allow one to determine at
which speed (if at all) the law of a diffusion process, or indeed a rather general Markov …

Variance reduction using nonreversible Langevin samplers

AB Duncan, T Lelievre, GA Pavliotis - Journal of statistical physics, 2016 - Springer
A standard approach to computing expectations with respect to a given target measure is to
introduce an overdamped Langevin equation which is reversible with respect to the target …

[HTML][HTML] The tamed unadjusted Langevin algorithm

N Brosse, A Durmus, É Moulines, S Sabanis - Stochastic Processes and …, 2019 - Elsevier
In this article, we consider the problem of sampling from a probability measure π having a
density on R d proportional to x↦ e− U (x). The Euler discretization of the Langevin …

[HTML][HTML] Multi-class oscillating systems of interacting neurons

S Ditlevsen, E Löcherbach - Stochastic Processes and their Applications, 2017 - Elsevier
We consider multi-class systems of interacting nonlinear Hawkes processes modeling
several large families of neurons and study their mean field limits. As the total number of …

Subgeometric rates of convergence of Markov processes in the Wasserstein metric

O Butkovsky - 2014 - projecteuclid.org
We establish subgeometric bounds on convergence rate of general Markov processes in the
Wasserstein metric. In the discrete time setting we prove that the Lyapunov drift condition …

[HTML][HTML] Harris-type results on geometric and subgeometric convergence to equilibrium for stochastic semigroups

JA Cañizo, S Mischler - Journal of Functional Analysis, 2023 - Elsevier
We provide simple and constructive proofs of Harris-type theorems on the existence and
uniqueness of an equilibrium and the speed of equilibration of discrete-time and continuous …