Abstract
We establish the Hyers–Ulam stability of a second-order linear Hill-type h-difference equation with a periodic coefficient. Using results from first-order h-difference equations with periodic coefficient of arbitrary order, both homogeneous and non-homogeneous, we also establish a Hyers–Ulam stability constant. Several interesting examples are provided. As a powerful application, we use the main result to prove the Hyers–Ulam stability of a certain third-order h-difference equation with periodic coefficients of one form.
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The second author was supported by JSPS KAKENHI Grant Number JP20K03668.
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Anderson, D.R., Onitsuka, M. Hyers–Ulam Stability for a Type of Discrete Hill Equation. Results Math 79, 68 (2024). https://doi.org/10.1007/s00025-023-02097-w
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DOI: https://doi.org/10.1007/s00025-023-02097-w