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New oscillation conditions for first-order linear retarded difference equations with non-monotone arguments. (English) Zbl 1504.39015

Summary: In this paper, we study the oscillatory behavior of the solutions of a first-order difference equation with non-monotone retarded argument and nonnegative coefficients, based on an iterative procedure. We establish some oscillation criteria, involving \(\lim \sup\), which achieve a marked improvement on several known conditions in the literature. Two examples, numerically solved in MAPLE software, are also given to illustrate the applicability and strength of the obtained conditions.

MSC:

39A21 Oscillation theory for difference equations

Software:

Maple
Full Text: DOI

References:

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