[PDF][PDF] Stability of new functional equations and partial multipliers in Banach∗-algebras
C ZHAI, JIN KANG - Carpathian Journal of Mathematics, 2025 - carpathian.cunbm.utcluj.ro
f (λx)+ f (λy) n0 where n0 is a positive integer with n0= 1, and λ> 0 is a fixed constant. We
prove the Hyers-Ulam stability for the above additive functional equations by using fixed …
prove the Hyers-Ulam stability for the above additive functional equations by using fixed …
[PDF][PDF] On asymptotic behavior of a quadratic functional equation.
M Sirouni, M Almahalebi… - Journal of Computational …, 2023 - eudoxuspress.com
The main goal of this paper is to investigate the stability problems for the following quadratic
functional equation f (x+ y+ z)+ f (x+ y− z)+ f (x− y+ z)+ f (− x+ y+ z)= 4f (x)+ 4f (y)+ 4f (z) on an …
functional equation f (x+ y+ z)+ f (x+ y− z)+ f (x− y+ z)+ f (− x+ y+ z)= 4f (x)+ 4f (y)+ 4f (z) on an …