Tang, X. H.; Zhang, R. Y. New oscillation criteria for delay difference equations. (English) Zbl 1002.39022 Comput. Math. Appl. 42, No. 10-11, 1319-1330 (2001). Reviewer: Vladimir Răsvan (Craiova) MSC: 39A11 × Cite Format Result Cite Review PDF Full Text: DOI
Wang, Z. C.; Zhang, R. Y. Nonexistence of eventually positive solutions of a difference inequality with multiple and variable delays and coefficients. (English) Zbl 0970.39013 Comput. Math. Appl. 40, No. 6-7, 705-712 (2000). Reviewer: Mihaly Pituk (Veszprem) MSC: 39A11 26D15 × Cite Format Result Cite Review PDF Full Text: DOI