Generalised Symmetries and the Ermakov-Lewis Invariant

Goodall, R. / Leach, P. G. L. | British Library Online Contents | 2005

The Gibbons–Tsarev equation: symmetries, invariant solutions, and applications

Lelito, Aleksandra / Morozov, Oleg I. | British Library Online Contents | 2016

Nonclassical Contact Symmetries and Charpit's Method of Compatibility

Arrigo, D. J. | British Library Online Contents | 2005

Elliptic CR-manifolds and shear invariant ordinary differential equations with additional symmetries

Ezhov, V. / Schmalz, G. | British Library Online Contents | 2007

On the Nonlocal Symmetries, Group Invariant Solutions and Conservation Laws of the Equations of Nonlinear Dynamical Compressible Elasticity

Bluman, G. W. / Cheviakov, A. F. / Ganghoffer, J. F. | Springer Verlag | 2009