On the probabilistic Cauchy theory for nonlinear dispersive PDEs

Á Bényi, T Oh, O Pocovnicu - Landscapes of time-frequency analysis, 2019 - Springer
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Hyperbolic -model on the plane

T Oh, L Tolomeo, Y Wang, G Zheng - arXiv preprint arXiv:2211.03735, 2022 - arxiv.org
We study the hyperbolic $\Phi^{k+ 1} _2 $-model on the plane. By establishing coming down
from infinity for the associated stochastic nonlinear heat equation (SNLH) on the plane, we …

[HTML][HTML] Almost sure existence of global solutions for general initial value problems

Z Ammari, S Farhat, V Sohinger - Advances in Mathematics, 2024 - Elsevier
This article is concerned with the almost sure existence of global solutions for initial value
problems of the form γ˙(t)= v (t, γ (t)) on separable dual Banach spaces. We prove a general …

Invariance of measure under nonlinear wave and Schr\"odinger equations on the plane

N Barashkov, P Laarne - arXiv preprint arXiv:2211.16111, 2022 - arxiv.org
We show probabilistic existence and uniqueness for the Wick-ordered cubic nonlinear wave
equation in a weighted Besov space over $\mathbb R^ 2$. To achieve this, we show that a …

Unique ergodicity for a class of stochastic hyperbolic equations with additive space-time white noise

L Tolomeo - Communications in Mathematical Physics, 2020 - Springer
In this paper, we consider a certain class of second order nonlinear PDEs with damping and
space-time white noise forcing, posed on the d-dimensional torus. This class includes the …

Invariant measures for mKdV and KdV in infinite volume

J Forlano, R Killip, M Visan - arXiv preprint arXiv:2401.04292, 2024 - arxiv.org
We construct dynamics for the defocusing real-valued (Miura) mKdV equation on the real
line with initial data distributed according to Gibbs measure. We also prove that Gibbs …

Gibbs measures as local equilibrium KMS states for focusing nonlinear Schr\" odinger equations

Z Ammari, A Rout, V Sohinger - arXiv preprint arXiv:2412.05354, 2024 - arxiv.org
In this paper, we are concerned with the study of statistical equilibria for focusing nonlinear
Schr\" odinger and Hartree equations on the d-dimensional torus when d= 1, 2, 3. Due to the …

Multi-scale analysis of interactions between waves and particles

S Farhat - 2023 - theses.hal.science
This thesis consists of two parts. Part I studies a special class of oscillating nonlinear
differential equations in finite dimensional spaces. Under integrability conditions, a «blow …