Quadratic Functional Equation

Fuzzy stability results deriving form quadratic functional equation
Annals of Communications in Mathematics 2020
, 3 (4)
, 252-260
DOI: https://doi.org/10.62072/acm.2020.030402
AbstractWe establish the generalized Hyers-Ulam stability of the 4 variable quadratic functional equation in Fuzzy Normed Spaces using two different methods.

Stability of 4-variable quadratic functional equation in Banach spaces
Annals of Communications in Mathematics 2020
, 3 (1)
, 80-87
DOI: https://doi.org/10.62072/acm.2020.030108
AbstractIn this work, authors investigate the generalized Hyers-Ulam stability of the 4-variable quadratic functional equation of the form