J. Nishiguchi, "On regularity of mild solutions for autonomous linear retarded functional differential equations," accepted for publication in Acta Sci. Math. (Szeged). [arXiv:2407.11777]
J. Nishiguchi, "Some extension of Hara-Sugie stability condition by using critical delay," Funkcial. Ekvac. 67 (2024), no.1, 61-83. [DOI:10.1619/fesi.67.61]
J. Nishiguchi, "Mild solutions, variation of constants formula, and linearized stability for delay differential equations," Electron. J. Qual. Theory Differ. Equ. 2023, no. 32, 77 pp. [DOI:10.14232/ejqtde.2023.1.32] [Open Access]
J. Nishiguchi, "Asymptotic compactness in topological spaces," Topology Appl. 287 (2021), Paper No. 107451, 26 pp. [DOI:10.1016/j.topol.2020.107451]
J. Nishiguchi, "$C^1$-smooth dependence on initial conditions and delay: spaces of initial histories of Sobolev type, and differentiability of translation in $L^p$," Electron. J. Qual. Theory Differ. Equ. 2019, Paper No. 91, 32 pp. [DOI:10.14232/ejqtde.2019.1.91] [Open Access]
J. Nishiguchi, "A necessary and sufficient condition for well-posedness of initial value problems of retarded functional differential equations," J. Differential Equations 263 (2017), no. 6, 3491-3532. [DOI:10.1016/j.jde.2017.04.038]
J. Nishiguchi, "On parameter dependence of exponential stability of equilibrium solutions in differential equations with a single constant delay," Discrete Contin. Dyn. Syst. 36 (2016), no. 10, 5657-5679. [DOI:10.3934/dcds.2016048]
[Invited] "Mild solutions induced by retarded structure, and its extension to infinite retardation," Workshop "Dynamical Systems and Related Topics" in honor of Professor Yagasaki's retirement, Kyoto University, December 15, 2025.
[Invited] "On regularity of mild solutions for linear delay differential equations," Equadiff 2024 (MS6: Delay differential equations and applications), Karlstad, Sweden, June 10, 2024.
[Invited] "'Mild solutions' and variation of constants formula for delay differential equations," The 4th International Conference on Dynamics of Differential Equations - in Memory of Jack K. Hale, Toronto, Canada, August 15, 2023.
[Invited] "'Mild solutions' and variation of constants formula for delay differential equations," 12th Colloquium on the Qualitative Theory of Differential Equations, Szeged, Hungary, June 21, 2023.
[Invited] "Infinite dimensionality and transcendence brought by time delays,", MSJ Autumn Meeting 2022 (Special Lecture on Division of Applied Mathematics), Hokkaido University, September 15, 2022.