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Phases of linear difference equations and symplectic systems

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Original title:Phases of linear difference equations and symplectic systems
Authors:Zuzana Došlá, Denisa Škrabáková
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Original language:English
Field:General mathematics
Type:Article in Periodical
Keywords:Symplectic system; Stur-Liouville difference equation; phase; trigonometric transformation

The concept of the phase of symplectic systems is introduced as the discrete analogy of the Boruvka concept of the phase of second order linear differential equations. Oscillation and nonoscillation of difference equations and systems are investigated in connections with phases and trigonometric systems.

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