Generalized Hyers-Ulam Stability of Quadratic Functional Equations: A Fixed Point Approach
Using the fixed point method, we prove the generalized Hyers-Ulam stability of the quadratic functional equation f(2x+y)=4f(x)+f(y)+f(x+y)−f(x−y) in Banach spaces.
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
SpringerOpen
2008
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/524104ebb2de45ea8048865931a3ec41 |
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| Sumario: | Using the fixed point method, we prove the generalized Hyers-Ulam stability of the quadratic functional equation f(2x+y)=4f(x)+f(y)+f(x+y)−f(x−y) in Banach spaces. |
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