On the wave turbulence theory of 2D gravity waves, I: deterministic energy estimates

Y Deng, AD Ionescu, F Pusateri - Communications on Pure and …, 2022 - Wiley Online Library
Our goal in this paper is to initiate the rigorous investigation of wave turbulence and
derivation of wave kinetic equations (WKEs) for water waves models. This problem has …

Reducible KAM tori for the Degasperis–Procesi equation

R Feola, F Giuliani, M Procesi - Communications in mathematical physics, 2020 - Springer
We develop KAM theory close to an elliptic fixed point for quasi-linear Hamiltonian
perturbations of the dispersive Degasperis–Procesi equation on the circle. The overall …

Long time solutions for quasilinear Hamiltonian perturbations of Schrödinger and Klein–Gordon equations on tori

R Feola, B Grébert, F Iandoli - Analysis & PDE, 2023 - msp.org
We consider quasilinear, Hamiltonian perturbations of the cubic Schrödinger and of the
cubic (derivative) Klein–Gordon equations on the d-dimensional torus. If 𝜖≪ 1 is the size of …

Quasi-periodic traveling waves on an infinitely deep fluid under gravity

R Feola, F Giuliani - arXiv preprint arXiv:2005.08280, 2020 - arxiv.org
We consider the gravity water waves system with a periodic one-dimensional interface in
infinite depth and we establish the existence and the linear stability of small amplitude, quasi …

Birkhoff normal form and long time existence for periodic gravity water waves

M Berti, R Feola, F Pusateri - Communications on Pure and …, 2023 - Wiley Online Library
We consider the gravity water waves system with a periodic one‐dimensional interface in
infinite depth and give a rigorous proof of a conjecture of Dyachenko‐Zakharov [16] …

Long time dynamics for generalized Korteweg–de Vries and Benjamin–Ono equations

J Bernier, B Grébert - Archive for Rational Mechanics and Analysis, 2021 - Springer
We provide an accurate description of the long time dynamics of the solutions of the
generalized Korteweg–De Vries and Benjamin–Ono equations on the one dimension torus …

Long-time existence for semi-linear beam equations on irrational tori

J Bernier, R Feola, B Grébert, F Iandoli - Journal of Dynamics and …, 2021 - Springer
We consider the semi-linear beam equation on the d dimensional irrational torus with
smooth nonlinearity of order n-1 n-1 with n ≥ 3 n≥ 3 and d ≥ 2 d≥ 2. If ε ≪ 1 ε≪ 1 is the …

[图书][B] Quasi-periodic traveling waves on an infinitely deep perfect fluid under gravity

R Feola, F Giuliani - 2024 - books.google.com
We consider the gravity water waves system with a periodic one-dimensional interface in
infinite depth and we establish the existence and the linear stability of small amplitude, quasi …

Long‐Term Regularity of 3D Gravity Water Waves

F Zheng - Communications on Pure and Applied Mathematics, 2022 - Wiley Online Library
We study a fundamental model in fluid mechanics—the 3D gravity water wave equation, in
which an incompressible fluid occupying half the 3D space flows under its own gravity. In …

Two-dimensional gravity waves at low regularity I: Energy estimates

A Ai, M Ifrim, D Tataru - Annales de l'Institut Henri Poincaré C, 2024 - ems.press
This article represents the first installment of a series of papers concerned with low regularity
solutions for the water wave equations in two space dimensions. Our focus here is on sharp …