Evans, N. W. Group theory of the Smorodinsky-Winternitz system. (English) Zbl 0746.58071 J. Math. Phys. 32, No. 12, 3369-3375 (1991). MSC: 37N99 81R50 PDF BibTeX XML Cite \textit{N. W. Evans}, J. Math. Phys. 32, No. 12, 3369--3375 (1991; Zbl 0746.58071) Full Text: DOI
Evans, N. W. On Hamiltonian systems in two degrees of freedom with invariants quartic in the momenta of form \(p^ 2_ 1p^ 2_ 2\dots \). (English) Zbl 0706.70015 J. Math. Phys. 31, No. 3, 600-604 (1990). MSC: 70H05 37J99 PDF BibTeX XML Cite \textit{N. W. Evans}, J. Math. Phys. 31, No. 3, 600--604 (1990; Zbl 0706.70015) Full Text: DOI
Evans, N. W. An algorithm for numerical solution of the stellar hydrodynamical equations. (English) Zbl 0699.76058 Int. J. Comput. Math. 34, No. 1-2, 105-112 (1990). MSC: 76E25 85A05 PDF BibTeX XML Cite \textit{N. W. Evans}, Int. J. Comput. Math. 34, No. 1--2, 105--112 (1990; Zbl 0699.76058) Full Text: DOI