activity
20242026
collaborators

5 papers

math.AP2026

Periodic homogenisation for two dimensional generalised parabolic Anderson model

Yilin Chen, Benjamin Fehrman, Weijun Xu

We consider the periodic homogenisation problem for the generalised parabolic Anderson model on the two dimensional torus. We show that, for the renormalisation that respects Wick…

math.AP2025

Green function and invariant measure estimates for nondivergence form elliptic homogenization

Scott Armstrong, Benjamin Fehrman, Jessica Lin

We prove quantitative estimates on the the parabolic Green function and the stationary invariant measure in the context of stochasic homogenization of elliptic equations in nondive…

math.PR2025

Matching Large Deviation Bounds of the Zero-Range Process in the whole space

Benjamin Fehrman, Benjamin Gess, Daniel Heydecker

We consider the large deviations of the hydrodynamic rescaling of the zero-range process on in any dimension . Under mild and canonical hypotheses on the loc…

math.PR2025

Stochastic PDEs with correlated, non-stationary Stratonovich noise of Dean--Kawasaki type

Benjamin Fehrman

The results of the author and Gess [27] develop a robust well-posedness theory for a broad class of conservative stochastic PDEs, with both probabilistically stationary and non-sta…

math.PR2024

Conservative stochastic PDEs on the whole space

Benjamin Fehrman, Benjamin Gess

The purpose of this paper is to establish a well-posedness theory for conservative stochastic partial differential equations on the whole space. This class of stochastic PDEs arise…