Higher order mKdV breathers: nonlinear stability
DOI:
https://doi.org/10.22199/issn.0717-6279-6048Keywords:
Higher order mKdV equation, Breather, stability, integrability.Abstract
We are interested in stability results for breather solutions of the 5th, 7th and 9th order mKdV equations.
We show that these higher order mKdV breathers are stable in $H^2(\R)$, in the same way as \emph{classical} mKdV breathers.
We also show that breather solutions of the 5th, 7th and 9th order mKdV equations satisfy the same stationary fourth order
nonlinear elliptic equation as the mKdV breather, independently of the order, 5th, 7th or 9th, considered.
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