Spectral properties of the Frechet derivatives of stratified steady Stokes waves

Fuente: arXiv
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Autor principal: Kozlov, Vladimir
Formato: Preprint
Publicado: 2025
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author Kozlov, Vladimir
author_facet Kozlov, Vladimir
contents We consider stratified steady water waves in a two dimensional channel. Our main subject is spectral properties of the Frechet derivatives of steady water Stokes waves. One of main results is the absence of subharmonic water waves in a neighborhood of a Stokes wave. The main assumption is formulated in terms of the eigenvalues of the Frechet derivative evaluated at this wave and considered in the class of periodic solutions of the same period. The first eigenvalue is always negative. We show that if the second eigenvalue is positive then there are no waves with multiple periods in a neighborhood of the Stokes wave.
format Preprint
id arxiv_https___arxiv_org_abs_2512_03831
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Spectral properties of the Frechet derivatives of stratified steady Stokes waves
Kozlov, Vladimir
Analysis of PDEs
Mathematical Physics
35Q31, 76N30,
We consider stratified steady water waves in a two dimensional channel. Our main subject is spectral properties of the Frechet derivatives of steady water Stokes waves. One of main results is the absence of subharmonic water waves in a neighborhood of a Stokes wave. The main assumption is formulated in terms of the eigenvalues of the Frechet derivative evaluated at this wave and considered in the class of periodic solutions of the same period. The first eigenvalue is always negative. We show that if the second eigenvalue is positive then there are no waves with multiple periods in a neighborhood of the Stokes wave.
title Spectral properties of the Frechet derivatives of stratified steady Stokes waves
topic Analysis of PDEs
Mathematical Physics
35Q31, 76N30,
url https://arxiv.org/abs/2512.03831