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Approximate mixed type additive and quartic functional equation
2017
Boletim da Sociedade Paranaense de Matemática
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In the current work, we introduce a general form of a mixed additive and quartic functional equation. We determine all solutions of this functional equation. We also establish the generalized Hyers-Ulam stability of this new functional equation in quasi-$\beta$-normed spaces.
doi:10.5269/bspm.v35i1.29014
fatcat:ixpb53k2vbcvznyl7l36badlcy