The necessary and sufficient conditions of existence of periodic solutions of nonautonomous difference equations
The results of the authors' paper [ibid. 131, 461-467 (2002; reviewed above)] are generalized to the nonautonomous case and applied to a rational difference equation. Reviewer's remark: In both papers the difference equation has the order \(k+1\) and not \(n\).
scientific article; zbMATH DE number 1861394