activity
20042026
most citedOn Approximating the Riemannian 1-Center

39 citations · 118 across the 37 of their papers we have counts for

collaborators

46 papers

math.PR2026

Large time behaviour for the semigroup of the kinetic Brownian motion in the plane

Magalie Bénéfice, Michel Bonnefont, Marc Arnaudon +1

We establish an integration by parts formula for the semigroup in time of the kinetic Brownian motion in the Euclidean plane together with its velocity in the circle. The sto…

math.PR2025

Martingales On A Euclidean Manifold With A Boundary And Reflected BSDES In Non-Convex Domains

Marc Arnaudon, Jean-François Chassagneux, Sergey Nadtochiy +1

The purpose of this paper is twofold. First, we introduce the notion of a -martingale on a Euclidean manifold with a boundary (i.e., the closure of an open connected domain in R…

math.PR2025

Continuous-time filtering in Lie groups: estimation via the Fr{é}chet mean of solutions to stochastic differential equations

Magalie Bénéfice, Marc Arnaudon, Audrey Giremus

We compute the Fréchet mean of the solution to a continuous-time stochastic differential equation in a Lie group. It provides an estimator with minimal vari…

math.PR2024

On the separation cut-off phenomenon for Brownian motions on high dimensional rotationally symmetric compact manifolds

Koléhè Coulibaly-Pasquier, Marc Arnaudon, Laurent Miclo

Given a family of rotationally symmetric compact manifolds indexed by the dimension and a weight function, the goal of this paper is to investigate the cut-off phenomenon for the B…

math.PR2024

A coupling strategy for Brownian motions at fixed time on Carnot groups using Legendre expansion

Marc Arnaudon, Magalie Bénéfice, Michel Bonnefont +1

We propose a new simple construction of a coupling at a fixed time of two sub-Riemannian Brownian motions on the Heisenberg group and on the free step 2 Carnot groups. The construc…

math.DG2024★ 1 cited

Coarse extrinsic curvature of Riemannian submanifolds

Marc Arnaudon, Xue-Mei Li, Benedikt Petko

We introduce a novel concept of coarse extrinsic curvature for Riemannian submanifolds, inspired by Ollivier's notion of coarse Ricci curvature. This curvature is derived from the…