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On the Hyers-Ulam-Rassias stability of approximately additive mappings. (English) Zbl 0888.46018
The article contains another generalization of the classical Hyers solution to the Ulam problem on approximately additive mappings. The author vaguely indicates independent proves of his result in the articles by P. Găvrută with coathors.

MSC:
46G05 Derivatives of functions in infinite-dimensional spaces
47A99 General theory of linear operators
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