Asymptotic Expansions for Higher-Order Scalar Difference Equations

We give an asymptotic expansion of the solutions of higher-order Poincaré difference equation in terms of the characteristic solutions of the limiting equation. As a consequence, we obtain an asymptotic description of the solutions approaching a hyperbolic equilibrium of a higher-order nonlinear...

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Main Authors: Ravi P. Agarwal, Mihály Pituk
Format: Article
Language:English
Published: SpringerOpen 2007-04-01
Series:Advances in Difference Equations
Online Access:http://dx.doi.org/10.1155/2007/67492
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author Ravi P. Agarwal
Mihály Pituk
author_facet Ravi P. Agarwal
Mihály Pituk
author_sort Ravi P. Agarwal
collection DOAJ
description We give an asymptotic expansion of the solutions of higher-order Poincaré difference equation in terms of the characteristic solutions of the limiting equation. As a consequence, we obtain an asymptotic description of the solutions approaching a hyperbolic equilibrium of a higher-order nonlinear difference equation with sufficiently smooth nonlinearity. The proof is based on the inversion formula for the z -transform and the residue theorem.
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spelling doaj.art-a2a816ef09984e9d8acd94944a3cb26c2022-12-22T01:13:30ZengSpringerOpenAdvances in Difference Equations1687-18391687-18472007-04-01200710.1155/2007/67492Asymptotic Expansions for Higher-Order Scalar Difference EquationsRavi P. AgarwalMihály PitukWe give an asymptotic expansion of the solutions of higher-order Poincaré difference equation in terms of the characteristic solutions of the limiting equation. As a consequence, we obtain an asymptotic description of the solutions approaching a hyperbolic equilibrium of a higher-order nonlinear difference equation with sufficiently smooth nonlinearity. The proof is based on the inversion formula for the z -transform and the residue theorem.http://dx.doi.org/10.1155/2007/67492
spellingShingle Ravi P. Agarwal
Mihály Pituk
Asymptotic Expansions for Higher-Order Scalar Difference Equations
Advances in Difference Equations
title Asymptotic Expansions for Higher-Order Scalar Difference Equations
title_full Asymptotic Expansions for Higher-Order Scalar Difference Equations
title_fullStr Asymptotic Expansions for Higher-Order Scalar Difference Equations
title_full_unstemmed Asymptotic Expansions for Higher-Order Scalar Difference Equations
title_short Asymptotic Expansions for Higher-Order Scalar Difference Equations
title_sort asymptotic expansions for higher order scalar difference equations
url http://dx.doi.org/10.1155/2007/67492
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