Ishibashi, Kazuki Nonoscillation of damped linear differential equations with a proportional derivative controller and its application to Whittaker-Hill-type and Mathieu-type equations. (English) Zbl 1523.34036 Opusc. Math. 43, No. 1, 67-79 (2023). Reviewer: Qiru Wang (Guangzhou) MSC: 34C10 34A30 34B30 34H05 PDFBibTeX XMLCite \textit{K. Ishibashi}, Opusc. Math. 43, No. 1, 67--79 (2023; Zbl 1523.34036) Full Text: DOI
Ishibashi, Kazuki Nonoscillation of the Mathieu-type half-linear differential equation and its application to the generalized Whittaker-Hill-type equation. (English) Zbl 07557945 Monatsh. Math. 198, No. 4, 741-756 (2022). MSC: 34C10 34B30 PDFBibTeX XMLCite \textit{K. Ishibashi}, Monatsh. Math. 198, No. 4, 741--756 (2022; Zbl 07557945) Full Text: DOI
Ishibashi, Kazuki Non-oscillation criterion for generalized Mathieu-type differential equations with bounded coefficients. (English) Zbl 1487.34091 Proc. Am. Math. Soc. 150, No. 1, 231-244 (2022). Reviewer: Kōdai Fujimoto (Osaka) MSC: 34C10 34B30 PDFBibTeX XMLCite \textit{K. Ishibashi}, Proc. Am. Math. Soc. 150, No. 1, 231--244 (2022; Zbl 1487.34091) Full Text: DOI
Sugie, Jitsuro; Ishibashi, Kazuki Oscillation problems for Hill’s equation with periodic damping. (English) Zbl 1405.34030 J. Math. Anal. Appl. 466, No. 1, 56-70 (2018). Reviewer: Sylvia Novo (Valladolid) MSC: 34C10 34B30 34A30 37C60 PDFBibTeX XMLCite \textit{J. Sugie} and \textit{K. Ishibashi}, J. Math. Anal. Appl. 466, No. 1, 56--70 (2018; Zbl 1405.34030) Full Text: DOI