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On the nonexistence of degenerate phase-shift multibreathers in Klein–Gordon models with interactions beyond nearest neighbors
(
Elsevier B.V.
, 2019 , Article)
In this work, we study the existence of, low amplitude, phase-shift multibreathers for small values of the linear coupling in Klein–Gordon chains with interactions beyond the classical nearest-neighbor (NN) ones. In the ...
On the nonexistence of degenerate phase-shift discrete solitons in a dNLS nonlocal lattice
(
Elsevier B.V.
, 2018 , Article)
We consider a one-dimensional discrete nonlinear Schrdinger (dNLS) model featuring interactions beyond nearest neighbors. We are interested in the existence (or nonexistence) of phase-shift discrete solitons, which correspond ...