Nafiseh Salehi - Department of Sciences, Najafabad Branch, Islamic Azad University, Najafabad, Iran.

In this research work, we demonstrate the Hyers-Ulam stability for functions that are homogeneous of degree k, in multi-Banach lattice by fixed point method.

Hyers-Ulam stability, functional equation, fixed point technique multi- Banach lattice, minimum preserving functional equation, homogeneity of degree k , quadratic and cubic functional equations