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The stability of the quadratic functional equation. (English) Zbl 0844.39008
Rassias, Themistocles M. (ed.) et al., Stability of mappings of Hyers-Ulam type. Palm Harbor, FL: Hadronic Press. 81-91 (1994).
Summary: We consider the problem of stability of the quadratic functional equation. In particular, we get the result for the stability of such equation for so-called set-valued mappings.
For the entire collection see [Zbl 0835.00001].

MSC:
39B52 Functional equations for functions with more general domains and/or ranges
39B72 Systems of functional equations and inequalities
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