Anderson, Douglas R.; Onitsuka, Masakazu Hyers-Ulam stability for a type of discrete Hill equation. (English) Zbl 07792574 Result. Math. 79, No. 2, Paper No. 68, 19 p. (2024). MSC: 39A30 39A23 PDFBibTeX XMLCite \textit{D. R. Anderson} and \textit{M. Onitsuka}, Result. Math. 79, No. 2, Paper No. 68, 19 p. (2024; Zbl 07792574) Full Text: DOI arXiv
EL-Fassi, Iz-iddine; Najati, Abbas; Onitsuka, Masakazu; Rassias, Themistocles M. A new hyperstability result for the multi-Drygas equation via the Brzdȩk’s fixed point approach. (English) Zbl 1511.39024 Result. Math. 78, No. 3, Paper No. 92, 20 p. (2023). Reviewer: Stefan Czerwik (Gliwice) MSC: 39B82 39B52 47J05 47H10 PDFBibTeX XMLCite \textit{I.-i. EL-Fassi} et al., Result. Math. 78, No. 3, Paper No. 92, 20 p. (2023; Zbl 1511.39024) Full Text: DOI
Onitsuka, Masakazu Hyers-Ulam stability for second order linear differential equations of Carathéodory type. (English) Zbl 1492.34016 J. Math. Inequal. 15, No. 4, 1499-1518 (2021). Reviewer: Rodica Luca (Iaşi) MSC: 34A30 34D10 34H05 PDFBibTeX XMLCite \textit{M. Onitsuka}, J. Math. Inequal. 15, No. 4, 1499--1518 (2021; Zbl 1492.34016) Full Text: DOI
Onitsuka, Masakazu Conditional Ulam stability and its application to the logistic model. (English) Zbl 1480.34012 Appl. Math. Lett. 122, Article ID 107565, 7 p. (2021). MSC: 34A34 34D10 PDFBibTeX XMLCite \textit{M. Onitsuka}, Appl. Math. Lett. 122, Article ID 107565, 7 p. (2021; Zbl 1480.34012) Full Text: DOI
Anderson, Douglas R.; Onitsuka, Masakazu Best Hyers-Ulam stability constants on a time scale with discrete core and continuous periphery. (English) Zbl 1508.39003 Rassias, Themistocles M. (ed.), Nonlinear analysis, differential equations, and applications. Cham: Springer. Springer Optim. Appl. 173, 17-37 (2021). MSC: 39A13 39A12 34N05 PDFBibTeX XMLCite \textit{D. R. Anderson} and \textit{M. Onitsuka}, Springer Optim. Appl. 173, 17--37 (2021; Zbl 1508.39003) Full Text: DOI
Anderson, Douglas R.; Onitsuka, Masakazu Best constant for Hyers-Ulam stability of two step sizes linear difference equations. (English) Zbl 1459.39036 J. Math. Anal. Appl. 496, No. 2, Article ID 124807, 17 p. (2021). MSC: 39A30 39A06 PDFBibTeX XMLCite \textit{D. R. Anderson} and \textit{M. Onitsuka}, J. Math. Anal. Appl. 496, No. 2, Article ID 124807, 17 p. (2021; Zbl 1459.39036) Full Text: DOI
Fukutaka, Ryuma; Onitsuka, Masakazu Best constant for Ulam stability of Hill’s equations. (English) Zbl 1457.34091 Bull. Sci. Math. 163, Article ID 102888, 22 p. (2020). Reviewer: Rodica Luca (Iaşi) MSC: 34D10 34A12 34A30 34B30 PDFBibTeX XMLCite \textit{R. Fukutaka} and \textit{M. Onitsuka}, Bull. Sci. Math. 163, Article ID 102888, 22 p. (2020; Zbl 1457.34091) Full Text: DOI
Anderson, Douglas R.; Onitsuka, Masakazu; Rassias, John Michael Best constant for Ulam stability of first-order \(h\)-difference equations with periodic coefficient. (English) Zbl 1451.39014 J. Math. Anal. Appl. 491, No. 2, Article ID 124363, 14 p. (2020). MSC: 39A30 39B82 PDFBibTeX XMLCite \textit{D. R. Anderson} et al., J. Math. Anal. Appl. 491, No. 2, Article ID 124363, 14 p. (2020; Zbl 1451.39014) Full Text: DOI arXiv
Anderson, Douglas R.; Onitsuka, Masakazu Hyers-Ulam stability of a discrete diamond-alpha derivative equation. (English) Zbl 1448.39033 Anastassiou, George A. (ed.) et al., Frontiers in functional equations and analytic inequalities. Cham: Springer. 237-254 (2019). Reviewer: Eszter Gselmann (Debrecen) MSC: 39A70 39B82 39B22 39A30 PDFBibTeX XMLCite \textit{D. R. Anderson} and \textit{M. Onitsuka}, in: Frontiers in functional equations and analytic inequalities. Cham: Springer. 237--254 (2019; Zbl 1448.39033) Full Text: DOI
Anderson, Douglas R.; Onitsuka, Masakazu Hyers-Ulam stability for a discrete time scale with two step sizes. (English) Zbl 1428.34136 Appl. Math. Comput. 344-345, 128-140 (2019). MSC: 34N05 39A30 39B82 65Q10 PDFBibTeX XMLCite \textit{D. R. Anderson} and \textit{M. Onitsuka}, Appl. Math. Comput. 344--345, 128--140 (2019; Zbl 1428.34136) Full Text: DOI arXiv
Anderson, Douglas R.; Onitsuka, Masakazu Best constant for Hyers-Ulam stability of second-order \(h\)-difference equations with constant coefficients. (English) Zbl 1433.39005 Result. Math. 74, No. 4, Paper No. 151, 16 p. (2019). Reviewer: Fengqin Zhang (Yuncheng) MSC: 39A30 39A10 PDFBibTeX XMLCite \textit{D. R. Anderson} and \textit{M. Onitsuka}, Result. Math. 74, No. 4, Paper No. 151, 16 p. (2019; Zbl 1433.39005) Full Text: DOI
Fukutaka, Ryuma; Onitsuka, Masakazu Best constant in Hyers-Ulam stability of first-order homogeneous linear differential equations with a periodic coefficient. (English) Zbl 1447.34019 J. Math. Anal. Appl. 473, No. 2, 1432-1446 (2019). Reviewer: Olusola Akinyele (Bowie) MSC: 34A30 34D10 37C60 PDFBibTeX XMLCite \textit{R. Fukutaka} and \textit{M. Onitsuka}, J. Math. Anal. Appl. 473, No. 2, 1432--1446 (2019; Zbl 1447.34019) Full Text: DOI
Onitsuka, Masakazu Hyers-Ulam stability of first order linear differential equations of Carathéodory type and its application. (English) Zbl 1408.34041 Appl. Math. Lett. 90, 61-68 (2019). MSC: 34D10 34A30 PDFBibTeX XMLCite \textit{M. Onitsuka}, Appl. Math. Lett. 90, 61--68 (2019; Zbl 1408.34041) Full Text: DOI
Onitsuka, Masakazu Hyers-Ulam stability of first-order nonhomogeneous linear difference equations with a constant stepsize. (English) Zbl 1427.39018 Appl. Math. Comput. 330, 143-151 (2018). MSC: 39B82 39A06 65Q10 PDFBibTeX XMLCite \textit{M. Onitsuka}, Appl. Math. Comput. 330, 143--151 (2018; Zbl 1427.39018) Full Text: DOI
Anderson, Douglas R.; Onitsuka, Masakazu Hyers-Ulam stability of first-order homogeneous linear dynamic equations on time scales. (English) Zbl 1401.34096 Demonstr. Math. 51, 198-210 (2018). MSC: 34N05 34A30 34A05 34D20 PDFBibTeX XMLCite \textit{D. R. Anderson} and \textit{M. Onitsuka}, Demonstr. Math. 51, 198--210 (2018; Zbl 1401.34096) Full Text: DOI