论文信息 - On the Hyers-Ulam Stability of ψ-Additive Mappings

On the Hyers-Ulam Stability of ψ-Additive Mappings

Let E1 be a real normed vector space and E2 a real Banach space. S. M. Ulam posed the problem: When does a linear mapping near an approximately additive mapping ?: E1 ? E2 exist? We give a new generalized solution to Ulam?s problem for ?-additive mappings. Some relations with the asymptotic differentiability are also indicated.

George Isac | Themistocles M. Rassias | G. Isac | T. Rassias

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