1 |
S. M. Ulam, A Collection of Mathematical Problems, Interscience Publishers, New York, 1968, p.63
|
2 |
J. Aczel and J. Dhombres, Functional Equations in Several Variables, Cambridge Univ. Press, Cambridge, 1989
|
3 |
J.-H. Bae and K.-W. Jun, On the generalized Hyers-Ulam-Rassias stability of an ndimensional quadratic functional equation, J. Math. Anal. Appl. 258 (2001), 183-193
DOI
ScienceOn
|
4 |
J.-H. Bae and W.-G. Park, On the generalized Hyers-Ulam-Rassias stability in Banach modules over a C-algebra, J. Math. Anal. Appl. 294 (2004), 196-205
DOI
ScienceOn
|
5 |
J.-H. Bae and W.-G. Park, On stability of a functional equation with n variables, Nonlinear Anal. 64 (2006), 856-868
DOI
ScienceOn
|
6 |
S.-M. Jung, On the Hyers-Ulam stability of the functional equations that have the quadratic property, J. Math. Anal. Appl. 222 (1998), 126-137
DOI
ScienceOn
|
7 |
C.-G. Park, Cauchy-Rassias stability of a generalized Trif 's mapping in Banach modules and its applications, Nonlinear Anal. 62 (2005), 595-613
DOI
ScienceOn
|