[HTML][HTML] Averaging principle for one dimensional stochastic Burgers equation

Z Dong, X Sun, H Xiao, J Zhai - Journal of Differential Equations, 2018 - Elsevier
In this paper, we consider the averaging principle for one dimensional stochastic Burgers
equation with slow and fast time-scales. Under some suitable conditions, we show that the …

Diffusion approximation for fully coupled stochastic differential equations

M Röckner, L Xie - 2021 - projecteuclid.org
We consider a Poisson equation in R d for the elliptic operator corresponding to an ergodic
diffusion process. Optimal regularity and smoothness with respect to the parameter are …

Averaging principle and normal deviations for multiscale stochastic systems

M Röckner, L Xie - Communications in Mathematical Physics, 2021 - Springer
We study the asymptotic behavior for an inhomogeneous multiscale stochastic dynamical
system with non-smooth coefficients. Depending on the averaging regime and the …

Generating diffusions with fractional Brownian motion

M Hairer, XM Li - Communications in Mathematical Physics, 2022 - Springer
We study fast/slow systems driven by a fractional Brownian motion B with Hurst parameter
H∈(1 3, 1]. Surprisingly, the slow dynamic converges on suitable timescales to a limiting …

Asymptotic behavior of multiscale stochastic partial differential equations

M Röckner, L Xie, L Yang - arXiv preprint arXiv:2010.14897, 2020 - arxiv.org
In this paper, we study the asymptotic behavior of a semi-linear slow-fast stochastic partial
differential equation with singular coefficients. Using the Poisson equation in Hilbert space …

Random perturbation to the geodesic equation

XM Li - 2016 - projecteuclid.org
We study random “perturbation” to the geodesic equation. The geodesic equation is
identified with a canonical differential equation on the orthonormal frame bundle driven by a …

Diffusion approximation for multi-scale stochastic reaction-diffusion equations

L Xie, L Yang - Journal of Differential Equations, 2021 - Elsevier
In this paper, we study the diffusion approximation for singularly perturbed stochastic
reaction-diffusion equation with a fast oscillating term. The asymptotic limit for the original …

Hamiltonian systems with Lévy noise: Symplecticity, Hamilton's principle and averaging principle

P Wei, Y Chao, J Duan - Physica D: Nonlinear Phenomena, 2019 - Elsevier
This work focuses on topics related to Hamiltonian stochastic differential equations with Lévy
noise. We first show that the phase flow of the stochastic system preserves symplectic …

Asymptotic behavior of multiscale stochastic partial differential equations with Hölder coefficients

M Röckner, L Xie, L Yang - Journal of Functional Analysis, 2023 - Elsevier
In this paper, we establish a quantified asymptotic analysis for a semi-linear slow-fast
stochastic partial differential equation with Hölder coefficients. By studying the Poisson …

Homogenisation on homogeneous spaces

XM Li - Journal of the Mathematical Society of Japan, 2018 - jstage.jst.go.jp
Motivated by collapsing of Riemannian manifolds and inhomogeneous scaling of left
invariant Riemannian metrics on a real Lie group G with a sub-group H, we introduce a …