Nearly Radical Quadratic Functional Equations in p-2-Normed Spaces
We establish some stability results in 2-normed spaces for the radical quadratic functional equation 𝑓(∑𝑛𝑖=1(𝑥𝑖+𝑦𝑖)2)+𝑓(∑𝑛𝑖=1(𝑥𝑖−𝑦𝑖)2)=2∑𝑛𝑖=1(𝑓(𝑥𝑖)+𝑓(𝑦𝑖)) and then use subadditive functions to prove its stability in 𝑝-2-normed spaces....
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Hindawi Limited
2012-01-01
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| Series: | Abstract and Applied Analysis |
| Online Access: | http://dx.doi.org/10.1155/2012/896032 |