On approximate solution of lattice functional equations in Banach <em>f</em>-algebras

Abstract

The aim of the current manuscript is to prove the Hyers-Ulam stability of supremum, infimum and multiplication preserving functional equations in Banach f -algebras. In fact, by using the direct method and the fixed point method, the Hyers-Ulam stability of the functional equations is proved.

Keywords

• hyers-ulam stability
• functional equation
• banach lattice
• <i>f</i> -algebra
• fixed point method