On constructing accurate approximations of first integrals for difference equations

DOI10.1016/j.cnsns.2012.09.010zbMath1259.39006OpenAlexW1980732096MaRDI QIDQ1931380

M. Rafei, Wim T. van Horssen

Publication date: 25 January 2013

Published in: Communications in Nonlinear Science and Numerical Simulation (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/j.cnsns.2012.09.010

zbMATH Keywords

functional equationnonlinear difference equationfirst integralsVan der Pol equationRayleigh equationsystems of difference equationsinvariance vectormultiple scales perturbation method

Mathematics Subject Classification ID

Nonlinear ordinary differential equations and systems (34A34) Discrete version of topics in analysis (39A12)

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