Stability and hyperstability of a quadratic functional equation and a characterization of inner product spaces
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Publication:1756708
DOI10.1515/DEMA-2018-0027zbMath1403.39028OpenAlexW2904133167MaRDI QIDQ1756708
Gwang Hui Kim, Chun-Gil Park, Iz-iddine EL-Fassi
Publication date: 21 December 2018
Published in: Demonstratio Mathematica (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.1515/dema-2018-0027
Fixed-point theorems (47H10) Stability, separation, extension, and related topics for functional equations (39B82) Functional equations for functions with more general domains and/or ranges (39B52) Perturbations of nonlinear operators (47H14)
Cites Work
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