Abstract

AbstractIn this work we give a complete group classification of the thin film equation ut = –(f (u)xxx )x – kg (u)x . By using Lie classical method the corresponding reductions are performed and some solutions are characterized. Some nonclassical symmetries for an associated potential system are derived. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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