defined on a power-associative, power-symmetric groupoid is proved. … The basic problem
of the stability of functional equations was proposed by S. … Motivated by these results we
study the Hyers–Ulam stability of monomial functional equations on a power-associative,
power-symmetric domain. Our main result reads as follows. If n is a positive integer, S
◦ is a power-associative, power-symmetric groupoid, B is a Banach space, f S → B is a …