activity
20242026
collaborators

5 papers

math.OC2026

Controllability and Exponential Mixing in Singular Interacting Particle Systems

Laurent Mertz, Vahagn Nersesyan, Manuel Rissel

This article concerns interacting particle systems with singular kernels, driven either by degenerate deterministic controls or by degenerate decomposable noise. In the determinist…

math.PR2025

A control variate method based on polynomial approximation of Brownian path

Josselin Garnier, Laurent Mertz

We present a novel control variate technique for enhancing the efficiency of Monte Carlo (MC) estimation of expectations involving solutions to stochastic differential equations (S…

cond-mat.stat-mech2025

A control variate method for threshold crossing probabilities of plastic deformation driven by transient coloured noise

Harry L. F. Ip, Charlie Mathey, Laurent Mertz +1

We propose a hybrid method combining partial differential equation (PDE) and Monte Carlo (MC) techniques to obtain efficient estimates of statistics for plastic deformation related…

math.PR2024

Sensitivity analysis of colored noise-driven interacting particle systems

Josselin Garnier, Harry L. F. Ip, Laurent Mertz

We propose an efficient sensitivity analysis method for a wide class of colored noise-driven interacting particle systems (IPS). Our method is based on unperturbed simulations and…

math.OC2024

Exponential mixing of constrained random dynamical systems via controllability conditions

Laurent Mertz, Vahagn Nersesyan, Manuel Rissel

We provide deterministic controllability conditions that imply exponential mixing properties for randomly forced constrained dynamical systems with possibly unbounded state space.…