## Found 8 Documents (Results 1–8)

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### Symmetries of particle Lagrangians. (English)Zbl 0790.34006

Ibragimov, N. Kh. (ed.) et al., Modern group analysis: Advanced analytical and computational methods in mathematical physics. Proceedings of the international workshop Acireale, Catania, Italy, October 27-31, 1992. Dordrecht: Kluwer Academic Publishers. 273-276 (1993).

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### Equivalent Lagrangians and the solution of some classes of non-linear equations $$\ddot q + p(t)\dot q + r(t)q = \mu \dot q^ 2 q^{-1} + f(t)q^ n$$. (English)Zbl 0760.34011

MSC:  34A25 70H03 34A05 34A34 34C30
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### Contact symmetry algebras of scalar second-order ordinary differential equations. (English)Zbl 0738.34008

MSC:  34A25 17B66 37C80
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### Symmetries of nonlinear differential equations and linearisation. (English)Zbl 0625.34044

MSC:  34C20 34A34
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### The linear symmetries of a nonlinear differential equation. (English)Zbl 0618.34009

Reviewer: N.L.Maria
MSC:  34A34 22E70
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