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math.AP2019
Orbital Stability of Periodic Standing Waves for the Logarithmic Klein-Gordon Equation
Fábio Natali, Eleomar Cardoso
The main goal of this paper is to present orbital stability results of periodic standing waves for the one-dimensional logarithmic Klein-Gordon equation. To do so, we first use com…
math.AP2019
Dynamics of breathers in the Gardner hierarchy: universality of the variational characterization
Miguel A. Alejo, Eleomar Cardoso
We present a new variational characterization of breather solutions of any equation of the \emph{focusing} Gardner hierarchy. This hierarchy is characterized by a nonnegative index…