島根大学理学部紀要

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島根大学理学部紀要 19
1985-12-25 発行

リアプノフ関数微分方程式における同等有界性

Liapunov Functions and Equiboundedness in Functional Differential Equations
古用 哲夫
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内容記述(抄録等)
The equiboundedness of the solutions of ordinary and functional differential equations are mainly discussed by using Liapunov's second method. For a theorem on equiboundedness in ordinary differential equations in [V. Lakshmikantham and S. Leela, Math. Systems Theory, 10 (1976), 85-90], an example is presented. Moreover the theorem is extended to functional differential equations with infinite delay by using Liapunov-Razumikhin method, and an application is prp-sented.