Solution and Stability of a Mixed Type Cubic and Quartic Functional Equation in Quasi-Banach Spaces
We obtain the general solution and the generalized Ulam-Hyers stability of the mixed type cubic and quartic functional equation f(x+2y)+f(x−2y)=4(f(x+y)+f(x−y))−24f(y)−6f(x)+3f(2y) in quasi-Banach spaces.
| Published in: | Abstract and Applied Analysis |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2009-01-01
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| Online Access: | http://dx.doi.org/10.1155/2009/417473 |