Nonclassical Approximate Symmetries of Evolution Equations with a Small Parameter

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We introduce a method of approximate nonclassical Lie-Bäcklund symmetries for partial differential equations with a small parameter and discuss applications of this method to finding of approximate solutions both integrable and nonintegrable equations.
Published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/

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Mathematical Physics, Exactly Solvable and Integrable Systems

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http://salesiana.dossiersoluciones.com/handle/123456789/159484

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math-ph/0604021
 http://arxiv.org/abs/math-ph/0604021
 SIGMA 2 (2006), 040, 11 pages
 doi:10.3842/SIGMA.2006.040

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arXiv