Global diffeomorphism of the Lagrangian flow-map defining equatorially trapped water waves

The aim of this paper is to prove that a three dimensional Lagrangian flow which defines equatorially trapped water waves is dynamically possible. This is achieved by applying a mixture of analytical and topological methods to prove that the nonlinear exact solution to the geophysical governing equa...

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Bibliographic Details
Author: Sastre Gómez, Silvia
Format: article
Status:Published version
Publication Date:2015
Country:España
Institution:Universidad de Sevilla (US)
Repository:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/138513
Online Access:https://hdl.handle.net/11441/138513
https://doi.org/10.1016/j.na.2015.06.017
Access Level:Open access
Keyword:Global diffeomorphism
Geophysical water waves
Exact and explicit solution
Description
Summary:The aim of this paper is to prove that a three dimensional Lagrangian flow which defines equatorially trapped water waves is dynamically possible. This is achieved by applying a mixture of analytical and topological methods to prove that the nonlinear exact solution to the geophysical governing equations, derived by Constantin (2012), is a global diffeomorphism from the Lagrangian labelling variables to the fluid domain beneath the free surface.