Nonoscillation of damped linear differential equations with a proportional derivative controller and its application to Whittaker-Hill-type and Mathieu-type equations

• Autorzy: Ishibashi Kazuki

Identyfikatory

DOI

10.7494/OpMath.2023.43.1.67

• Języki publikacji: EN

Abstrakty

EN

The proportional derivative (PD) controller of a differential operator is commonly referred to as the conformable derivative. In this paper, we derive a nonoscillation theorem for damped linear differential equations with a differential operator using the conformable derivative of control theory. The proof of the nonoscillation theorem utilizes the Riccati inequality corresponding to the equation considered. The provided nonoscillation theorem gives the nonoscillatory condition for a damped Euler-type differential equation with a PD controller. Moreover, the nonoscillation of the equation with a PD controller that can generalize Whittaker-Hill-type equations is also considered in this paper. The Whittaker-Hill-type equation considered in this study also includes the Mathieu-type equation. As a subtopic of this work, we consider the nonoscillation of Mathieu-type equations with a PD controller while making full use of numerical simulations.

Słowa kluczowe

EN

nonoscillation; proportional derivative controller; Riccati technique; Mathieu equation; Whittaker-Hill equation

• Wydawca: AGH University of Science and Technology Press
• Czasopismo: Opuscula Mathematica
• Rocznik: 2023
• Tom: Vol. 43, no. 1
• Strony: 67--79
• Opis fizyczny: Bibliogr. 24 poz., wykr.

Twórcy

autor

Ishibashi Kazuki

• Department of Electronic Control Engineering, National Institute of Technology (KOSEN), Hiroshima College, Toyota-gun 725-023, Japan

• https://orcid.org/0000-0003-1812-9980

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023)