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Generalized Zeros and Nonpositivity of Energy Functionals Associated with Half-Linear Even-Order Difference Equations

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Difference Equations, Discrete Dynamical Systems and Applications

Part of the book series: Springer Proceedings in Mathematics & Statistics ((PROMS,volume 150))

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Abstract

We investigate the relationship between oscillatory properties of half-linear even order difference equations and nonpositivity of the associated energy functionals. We convert the investigated difference equation into a Hamiltonian type difference system and using this transformation we establish our main result which says that the existence of two (or more) generalized zeros of a solution of the investigated difference equation implies that the corresponding energy functional attains a nonpositive value.

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Acknowledgments

Research supported by the grant P201/10/1032 of the Czech Grant Foundation.

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Correspondence to Ondřej Došlý .

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Došlý, O. (2015). Generalized Zeros and Nonpositivity of Energy Functionals Associated with Half-Linear Even-Order Difference Equations. In: Bohner, M., Ding, Y., Došlý, O. (eds) Difference Equations, Discrete Dynamical Systems and Applications. Springer Proceedings in Mathematics & Statistics, vol 150. Springer, Cham. https://doi.org/10.1007/978-3-319-24747-2_6

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