Ondřej Došlý, "Symplectic difference systems: oscillation theory and hyperbolic Prüfer transformation", Abstract and Applied Analysis, vol. 2004, Article ID 370453, 10 pages, 2004. https://doi.org/10.1155/S108533750430607X
Symplectic difference systems: oscillation theory and hyperbolic Prüfer transformation
We present basic methods of oscillation theory of symplectic difference systems (SDSs). A particular attention is devoted to the variational principle and to the transformation method. Hyperbolic Prüfer transformation for SDSs is established.
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