Abstract
We solve the inhomogeneous linear first order differential equations of the form y′(x) − λy(x) = Σ ∞ m=0 a m (x − c)m, and prove an approximation property of exponential functions. More precisely, we prove the local Hyers-Ulam stability of linear first order differential equations of the form y′(x) = λy(x) in a special class of analytic functions.
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Jung, S.M. An approximation property of exponential functions. Acta Math Hung 124, 155–163 (2009). https://doi.org/10.1007/s10474-009-8167-1
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DOI: https://doi.org/10.1007/s10474-009-8167-1
Key words and phrases
- linear first order differential equation
- power series method
- exponential function
- approximation
- Hyers-Ulam stability
- local Hyers-Ulam stability