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Orthogonal stability of a cubic-quartic functional equation
- Authors
- Park, Choonkil
- Issue Date
- Jan-2012
- Publisher
- International Scientific Research Publications
- Keywords
- Hyers-Ulam stability; orthogonally cubic-quartic functional equation; fixed point; orthogonality space
- Citation
- Journal of Nonlinear Science and Applications, v.5, no.1, pp 28 - 36
- Pages
- 9
- Indexed
- SCI
- Journal Title
- Journal of Nonlinear Science and Applications
- Volume
- 5
- Number
- 1
- Start Page
- 28
- End Page
- 36
- ISSN
- 2008-1898
2008-1901
- Abstract
- Using fixed point method, we prove the Hyers-Ulam stability of the orthogonally cubic-quartic functional equation f (2x + y) + f (2x - y) = 3f (x + y) + f (-x - y) + 3f (x - y) + f (y - x) + 18f (x) + 6f (-x) -3f (y)- 3f (-y) for all x, y with x perpendicular to y. (C) 2012 NGA. All rights reserved.
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