Nonlinear Sciences – Exactly Solvable and Integrable Systems
Scientific paper
2005-10-11
Nonlinear Sciences
Exactly Solvable and Integrable Systems
23 pages
Scientific paper
10.1016/j.geomphys.2006.02.005
For certain class of perturbations of the equation $u_t=f(u) u_x$, we prove
the existence of change of coordinates, called quasi-Miura transformations,
that reduce these perturbed equations to the unperturbed ones. As an
application, we propose a criterion for the integrability of these equations.
Liu Si-Qi
Zhang Youjin
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