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A simple method for group analysis and its application to a model of detonation. (English) Zbl 0761.35104
Summary: A simple procedure is suggested to obtain extensions of the principal Lie algebra, for invariance transformations of a given family of equations, by using an equivalence algebra. An application to a qualitative model of detonation is performed.

MSC:
35Q58Other completely integrable PDE (MSC2000)
37C80Symmetries, equivariant dynamical systems
76V05Interacting phases (fluid mechanics)
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