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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-periodic in time, traveling waves. This provides the…

Analysis of PDEs · Mathematics 2021-11-01 Roberto Feola , Filippo Giuliani

We present the recent result [8] concerning the existence of quasi-periodic in time traveling waves for the 2d pure gravity water waves system in infinite depth. We provide the first existence result of quasi-periodic water waves solutions…

Analysis of PDEs · Mathematics 2020-11-26 Roberto Feola , Filippo Giuliani

We prove the existence of small amplitude time quasi-periodic solutions of the pure gravity water waves equations with constant vorticity, for a bidimensional fluid over a flat bottom delimited by a space periodic free interface. Using a…

Analysis of PDEs · Mathematics 2021-03-02 Massimiliano Berti , Luca Franzoi , Alberto Maspero

We study the transverse dynamics of two-dimensional traveling periodic waves for the gravity--capillary water-wave problem. The governing equations are the Euler equations for the irrotational flow of an inviscid fluid layer with free…

Analysis of PDEs · Mathematics 2022-03-29 Mariana Haragus , Tien Truong , Erik Wahlén

We present a numerical study of spatially quasi-periodic gravity-capillary waves of finite depth in both the initial value problem and traveling wave settings. We adopt a quasi-periodic conformal mapping formulation of the Euler equations,…

Fluid Dynamics · Physics 2023-05-09 Jon Wilkening , Xinyu Zhao

This paper presents a pioneering investigation into the existence of traveling wave solutions for the two-dimensional Euler equations with constant vorticity in a curved annular domain, where gravity acts radially inward. This configuration…

Analysis of PDEs · Mathematics 2025-09-22 Liang Li , Quan Wang

We establish the existence of quasi-periodic traveling wave solutions for the $\beta$-plane equation on $\mathbb{T}^2$ with a large quasi-periodic traveling wave external force. These solutions exhibit large sizes, which depend on the…

Analysis of PDEs · Mathematics 2024-06-12 Roberta Bianchini , Luca Franzoi , Riccardo Montalto , Shulamit Terracina

By a bifurcation argument we prove that the capillary-gravity Whitham equation features asymmetrical periodic travelling wave solution of arbitrarily small amplitude. Such waves exist only in the weak surface tension regime…

Analysis of PDEs · Mathematics 2024-01-23 Ola Mæhlen , Douglas Svensson Seth

The paper deals with a problem of interaction between hydrodynamics and mechanics of nonlinear elastic bodies. The existence question for two-dimensional symmetric steady waves travelling on the surface of a deep ocean beneath a heavy…

Analysis of PDEs · Mathematics 2008-12-02 Pietro Baldi , John F Toland

In this paper we mainly investigate the traveling wave solution of the two dimensional Euler equations with gravity at the free surface over a flat bed. We assume that the free surface is almost periodic in the horizontal direction. Using…

Analysis of PDEs · Mathematics 2018-05-24 Wei Luo , Zhaoyang Yin

We prove the existence of large amplitude bi-periodic traveling waves (stationary in a moving frame) of the two-dimensional non-resistive Magnetohydrodynamics (MHD) system with a traveling wave external force with large velocity speed…

Analysis of PDEs · Mathematics 2025-02-03 Gennaro Ciampa , Riccardo Montalto , Shulamit Terracina

We present a method of detecting bifurcations by locating zeros of a signed version of the smallest singular value of the Jacobian. This enables the use of quadratically convergent root-bracketing techniques or Chebyshev interpolation to…

Fluid Dynamics · Physics 2023-02-22 Jon Wilkening , Xinyu Zhao

This paper is concerned with a priori $C^\infty$ regularity for three-dimensional doubly periodic travelling gravity waves whose fundamental domain is a symmetric diamond. The existence of such waves was a long standing open problem solved…

Analysis of PDEs · Mathematics 2010-11-12 Thomas Alazard , Guy Métivier

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 variable x - of a bi-dimensional ocean with finite depth under…

Analysis of PDEs · Mathematics 2018-12-21 Pietro Baldi , Massimiliano Berti , Emanuele Haus , Riccardo Montalto

We consider the stability of periodic gravity free-surface water waves traveling downstream at a constant speed over a shear flow of finite depth. In case the free surface is flat, a sharp criterion of linear instability is established for…

Analysis of PDEs · Mathematics 2007-11-28 Vera Mikyoung Hur , Zhiwu Lin

Starting with the pioneering computations of Stokes in 1847, the search of traveling waves in fluid mechanics has always been a fundamental topic, since they can be seen as building blocks to determine the long time dynamics (which is a…

Analysis of PDEs · Mathematics 2025-09-15 Roberto Feola , Riccardo Montalto , Shulamit Terracina

We establish the existence of small-amplitude uni- and bimodal steady periodic gravity waves with an affine vorticity distribution, using a bifurcation argument that differs slightly from earlier theory. The solutions describe waves with…

Analysis of PDEs · Mathematics 2019-07-15 Ailo Aasen , Kristoffer Varholm

We consider the global bifurcation problem for spatially periodic traveling waves for two-dimensional gravity-capillary vortex sheets. The two fluids have arbitrary constant, non-negative densities (not both zero), the gravity parameter can…

Analysis of PDEs · Mathematics 2014-12-30 David M. Ambrose , Walter A. Strauss , J. Douglas Wright

We study the motion of an interface between two irrotational, incompressible fluids, with elastic bending forces present; this is the hydroelastic wave problem. We prove a global bifurcation theorem for the existence of families of…

Analysis of PDEs · Mathematics 2025-08-19 Benjamin F. Akers , David M. Ambrose , Davia W. Sulon

We prove the first bifurcation result of time quasi-periodic traveling waves solutions for space periodic water waves with vorticity. In particular we prove existence of small amplitude time quasi-periodic solutions of the gravity-capillary…

Analysis of PDEs · Mathematics 2021-03-17 Massimiliano Berti , Luca Franzoi , Alberto Maspero
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