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ABSTRACT
An iterative procedure is used to establish the oscillatory sufficient conditions of first-order linear difference equations with several non-monotone deviating arguments and nonnegative coefficients. The conditions obtained by this method, achieve a marked improvement on all known conditions in the literature.
Acknowledgments
The authors would like to thank the referees for the constructive remarks which greatly improved the paper.
Disclosure statement
No potential conflict of interest was reported by the authors.