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Ishibashi Kazuki

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Oscillation Criteria of the Leighton–Wintner-Type and the Hille–Kneser-Type for Linear Differential Equations With a Proportional Derivative Controller

Creator	Ishibashi Kazuki \| Onitsuka Masakazu
Journal	Mathematical Methods in the Applied Sciences Volume 48 Issue 18 pp. 16690 - 16699
Date of Issued	published_at 2025-09-24

A Note on the Linearized Oscillation Theorem for Nonlinear RLC Circuits of Duffing Oscillator Type

Creator	Ishibashi Kazuki \| Shirakusa Seiya
Journal	Acta Applicandae Mathematicae Volume 202 Issue 1
Date of Issued	published_at 2026-03-24

Hille–Kneser-type oscillation criteria via Euler-type and Riemann–Weber-type equations with a proportional-derivative controller

Creator	Ishibashi Kazuki
Journal	Journal of Mathematical Analysis and Applications Volume 564 Issue 1
Date of Issued	published_at 2026-06-03