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Hyers–Ulam stability of an Euler–Lagrange type additive mapping

Chun-Gil Park, J. M. Rassias


Let X, Y be Banach modules over a C*-algebra and let r, s be positive real numbers. We prove the Hyers–Ulam stability of the following functional equation in Banach modules over a unital C*-algebra.


Euler–Lagrange–Rassias type additive mapping, stability, isomorphism between C*-algebras.

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