Orbital Instability of Standing Waves for the Coupled Nonlinear Klein-Gordon Equations

Orbital Instability of Standing Waves for the Coupled Nonlinear Klein-Gordon Equations

Year:    2008

Journal of Partial Differential Equations, Vol. 21 (2008), Iss. 4 : pp. 303–314

Abstract

This paper deals with a type of standing waves for the coupled nonlinear Klein-Gordon equations in three space dimensions. First we construct a suitable constrained variational problem and obtain the existence of the standing waves with ground state by using variational argument. Then we prove the orbital instability of the standing waves by defining invariant sets and applying some priori estimates.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/2008-JPDE-5284

Journal of Partial Differential Equations, Vol. 21 (2008), Iss. 4 : pp. 303–314

Published online:    2008-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    12

Keywords:    Orbital instability