Optimal existence conditions for second order periodic solutions of delay differential equations with upper and lower solutions in the reverse order

Daqing Jiang, Wenjie Zuo, Donal O'Regan, Ravi P. Agarwal

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Abstract

In this paper we show that the monotone iterative technique provides two monotone sequences that converge uniformly to extremal (periodic) solutions of second order delay differential equations without assuming properties of monotonicity in the nonlinear part. Moreover, we obtain optimal existence conditions with upper and lower solutions in the reverse order. Our results are new even for ordinary differential equations.

Original languageEnglish
Pages (from-to)707-717
Number of pages11
JournalInternational Journal of Computer Mathematics
Volume81
Issue number6
DOIs
Publication statusPublished - 1 Jun 2004

Keywords

  • Existence
  • Monotone iterative technique
  • Periodic solution
  • Upper and lower solution

Authors (Note for portal: view the doc link for the full list of authors)

  • Authors
  • Jiang, DQ;Zuo, WJ;O'Regan, D;Agarwal, RP

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