| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4633368 | Applied Mathematics and Computation | 2008 | 7 Pages |
Abstract
The aim of this paper is to investigate the superstability problem of the cosine(d'Alembert), the Wilson, and the sine functional equation from the pexiderized trigonometric functional equation (Tgh) under the condition: |f(x+y)-f(x-y)-2g(x)h(y)|⩽Ï(x) or Ï(y), and also will investigated the stability of the Jensen type functional equation (Jy) under the condition: |f(x+y)-f(x-y)-2f(y)|⩽Ï(x,y).
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Applied Mathematics
Authors
Gwang Hui Kim,