Abstract
In this paper, the stabilities in the sense of Hyers–Ulam, Hyers–Ulam–Rassias, Mittag–Leffler–Hyers–Ulam and Mittag–Leffler–Hyers–Ulam–Rassias of n-th order linear differential equations are investigated. The main results are proved by applying generalized replacement lemma and generalized Gronwall’s inequality. The obtained results include many previous results and give improvements. In particular, the results have improved in two ways: no initial conditions for differential equations and no conditions for a coefficient. Most of the results are limited to the case where the interval is bounded, but a result for the unbounded case is obtained.
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M.O. was supported by the Japan Society for the Promotion of Science (JSPS) KAKENHI (Grant No. JP20K03668).
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Both authors contributed equally to the study conception and design. The first draft of the manuscript was written by APS and both authors commented on previous versions of the manuscript. Both authors read and approved the final manuscript.
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Ponmana Selvan, A., Onitsuka, M. Ulam Type Stabilities of n-th Order Linear Differential Equations Using Gronwall’s Inequality. Results Math 78, 198 (2023). https://doi.org/10.1007/s00025-023-01975-7
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DOI: https://doi.org/10.1007/s00025-023-01975-7
Keywords
- Hyers–Ulam stability
- Hyers–Ulam–Rassias stability
- Mittag–Leffler–Hyers–Ulam stability
- Mittag–Leffler–Hyers–Ulam–Rassias stability
- linear differential equation
- replacement lemma
- Gronwall’s inequality