Stratified periodic water waves with singular density gradients

Autor:	Escher, Joachim, Knopf, Patrik, Lienstromberg, Christina, Matioc, Bogdan-Vasile
Rok vydání:	2019
Předmět:	Mathematics - Analysis of PDEs
Druh dokumentu:	Working Paper
Popis:	We consider Euler's equations for free surface waves traveling on a body of density stratified water in the scenario when gravity and surface tension act as restoring forces. The flow is continuously stratified, and the water layer is bounded from below by an impermeable horizontal bed. For this problem we establish three equivalent classical formulations in a suitable setting of strong solutions which may describe nevertheless waves with singular density gradients. Based upon this equivalence we then construct two-dimensional symmetric periodic traveling waves that are monotone between each crest and trough. Our analysis uses, to a large extent, the availability of a weak formulation of the water wave problem, the regularity properties of the corresponding weak solutions, and methods from nonlinear functional analysis. Comment: 34 pages
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1911.13046 Zobrazit plný text záznamu View this record from Arxiv