Some special solutions to the Hyperbolic NLS equation

Laurent Vuillon, Denys Dutykh, Francesco Fedele

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The Hyperbolic Nonlinear SCHRÖDINGER equation (HypNLS) arises as a model for the dynamics of three–dimensional narrow-band deep water gravity waves. In this study, the symmetries and conservation laws of this equation are computed. The PETVIASHVILI method is then exploited to numerically compute bi-periodic time-harmonic solutions of the HypNLS equation. In physical space they represent non-localized standing waves. Non-trivial spatial patterns are revealed and an attempt is made to describe them using symbolic dynamics and the language of substitutions. Finally, the dynamics of a slightly perturbed standing wave is numerically investigated by means a highly accurate FOURIER solver.

Original languageBritish English
Pages (from-to)202-220
Number of pages19
JournalCommunications in Nonlinear Science and Numerical Simulation
Volume57
DOIs
StatePublished - Apr 2018

Keywords

  • Deep water
  • Gravity waves
  • Ground states
  • Hyperbolic equations
  • NLS equation
  • Wave patterns

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