Abstract
We show the equivalence between the Hamiltonian and non-Hamiltonian forms of a fourth-order nonlinear Schrödinger equation for a particular example of the physical system described by the nonlinear Klein-Gordon equation with cubic nonlinearity.
- Received 17 June 2020
- Accepted 16 July 2020
DOI:https://doi.org/10.1103/PhysRevE.102.022202
©2020 American Physical Society
Physics Subject Headings (PhySH)
Nonlinear DynamicsGeneral Physics