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Group theoretical basis for the terminating 3F2(l) series.
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ON THE PRINCIPAL SUBALGEBRA OF QUANTUM ENVELOPING-ALGEBRAS GLQ(L+1).
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New aspects of integrability of generalized Hénon-Heiles systems
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Adjoint symmetries for time-dependent second-order equations
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Pseudo-symmetries, Noether's theorem and the adjoint equation
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Symmetries of nonlinear differential equations and linearisation
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A characterisation of higher-order Noether symmetries
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Some recent results on symmetries of Lagrangian systems re-examined
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A new look at second-order equations and Lagrangian mechanics
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A NEW SOLVABLE ONE-DIMENSIONAL CRYSTAL MODEL