Koplatadze, R.; Pinelas, S. Oscillation criteria for the first-order linear difference equations with several delay arguments. (English) Zbl 1342.39013 J. Math. Sci., New York 208, No. 5, 571-592 (2015) and Neliniĭni Kolyvannya 17, No. 2, 248-267 (2014). Reviewer: Roman Šimon Hilscher (Brno) MSC: 39A21 39A06 39A22 PDFBibTeX XMLCite \textit{R. Koplatadze} and \textit{S. Pinelas}, J. Math. Sci., New York 208, No. 5, 571--592 (2015; Zbl 1342.39013) Full Text: DOI Link
Koplatadze, R.; Pinelas, S. On oscillation of solutions of second-order nonlinear difference equations. (English) Zbl 1274.39021 J. Math. Sci., New York 189, No. 5, 784-794 (2013) and in Neliniĭni Kolyvannya 15, No. 2, 194-204 (2012). Reviewer: Pavel Rehak (Brno) MSC: 39A21 39A10 PDFBibTeX XMLCite \textit{R. Koplatadze} and \textit{S. Pinelas}, J. Math. Sci., New York 189, No. 5, 784--794 (2013; Zbl 1274.39021) Full Text: DOI Link