Unstable (Stable) system of stable (unstable) functional equations

Andrzej Mach, Zenon Moszner

Abstract


In this note the answer to a question by Z. Moszner from the paper [1] about connections of stability of separate equations and the system of them, is given.

Keywords


functional equation; stability; superstability; unstability

Mathematics Subject Classification


39B82

References


Moszner, Z. "On the stability of functional equations." Aequationes Math. 77 (2009): 33-88.


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