Additive p-functional Equations in β-homogeneous F-spaces
Journal of the Korean Society of Mathematical Education Series B: The Pure and Applied Mathematics / Journal of the Korean Society of Mathematical Education Series B: The Pure and Applied Mathematics, (P)1226-0657; (E)2287-6081
2017, v.24 no.4, pp.243-251
https://doi.org/10.7468/jksmeb.2017.24.4.243
Shim, EunHwa
Shim,,
E.
(2017). Additive p-functional Equations in β-homogeneous F-spaces. Journal of the Korean Society of Mathematical Education Series B: The Pure and Applied Mathematics, 24(4), 243-251, https://doi.org/10.7468/jksmeb.2017.24.4.243
Abstract
In this paper, we solve the additive <TEX>${\rho}-functional$</TEX> equations (0.1) <TEX>$f(x+y)+f(x-y)-2f(x)={\rho}(2f(\frac{x+y}{2})+f(x-y)-2f(x))$</TEX>, and (0.2) <TEX>$2f(\frac{x+y}{2})+f(x-y)-2f(x)={\rho}(f(x+y)+f(x-y)-2f(x))$</TEX>, where <TEX>${\rho}$</TEX> is a fixed (complex) number with <TEX>${\rho}{\neq}1$</TEX>, Using the direct method, we prove the Hyers-Ulam stability of the additive <TEX>${\rho}-functional$</TEX> equations (0.1) and (0.2) in <TEX>${\beta}-homogeneous$</TEX> (complex) F-spaces.
- keywords
-
Hyers-Ulam stability,
<tex> ${\beta}-homogeneous$</tex> F-space,
additive <tex> ${\rho}-functional$</tex> equation