Time quasi-periodic gravity water waves in finite depth

P Baldi, M Berti, E Haus, R Montalto - Inventiones mathematicae, 2018 - Springer
We prove the existence and the linear stability of Cantor families of small amplitude time
quasi-periodic standing water wave solutions—namely periodic and even in the space …

[图书][B] Quasi-periodic standing wave solutions of gravity-capillary water waves

M Berti, R Montalto - 2020 - ams.org
We prove the existence and the linear stability of small amplitude time quasi-periodic
standing wave solutions (ie periodic and even in the space variable $ x $) of a $2 …

Quasiperiodic solutions of the generalized SQG equation

J Gómez-Serrano, AD Ionescu, J Park - arXiv preprint arXiv:2303.03992, 2023 - arxiv.org
Our goal in this monograph is twofold. First, we would like to develop a robust method to
construct global time-quasiperiodic solutions of large families of quasilinear evolution …

[HTML][HTML] KAM for autonomous quasi-linear perturbations of KdV

P Baldi, M Berti, R Montalto - Annales de l'Institut Henri Poincaré C …, 2016 - Elsevier
We prove the existence and the stability of Cantor families of quasi-periodic, small amplitude
solutions of quasi-linear (ie strongly nonlinear) autonomous Hamiltonian differentiable …

Invariant KAM tori around annular vortex patches for 2D Euler equations

Z Hassainia, T Hmidi, E Roulley - Communications in Mathematical …, 2024 - Springer
We construct time quasi-periodic vortex patch solutions with one hole for the planar Euler
equations. These structures are captured close to any annulus provided that its modulus …

Reducibility of the quantum harmonic oscillator in d-dimensions with polynomial time-dependent perturbation

D Bambusi, B Grébert, A Maspero, D Robert - Analysis & PDE, 2017 - msp.org
Reducibility of the quantum harmonic oscillator in d-dimensions with polynomial time-dependent
perturbation Page 1 ANALYSIS & PDE msp Volume 11 No. 3 2018 DARIO BAMBUSI …

Boundary effects on the emergence of quasi-periodic solutions for Euler equations

Z Hassainia, E Roulley - Nonlinearity, 2024 - iopscience.iop.org
In this paper, we highlight the importance of the boundary effects on the construction of
quasi-periodic vortex patches solutions close to Rankine vortices and whose existence is …

[HTML][HTML] On time dependent Schrödinger equations: Global well-posedness and growth of Sobolev norms

A Maspero, D Robert - Journal of Functional analysis, 2017 - Elsevier
In this paper we consider time dependent Schrödinger linear PDEs of the form i∂ t ψ= L (t)
ψ, where L (t) is a continuous family of self-adjoint operators. We give conditions for well …

Reducibility of 1-d Schrödinger equation with time quasiperiodic unbounded perturbations. I

D Bambusi - Transactions of the American Mathematical Society, 2018 - ams.org
We study the Schrödinger equation on $\mathbb {R} $ with a polynomial potential behaving
as $ x^{2l} $ at infinity, $1\leq l\in\mathbb {N} $, and with a small time quasiperiodic …

Quasi-periodic incompressible Euler flows in 3D

P Baldi, R Montalto - Advances in Mathematics, 2021 - Elsevier
We prove the existence of time-quasi-periodic solutions of the incompressible Euler
equation on the three-dimensional torus T 3, with a small time-quasi-periodic external force …