Ulam Stability of a General Linear Functional Equation in Modular Spaces
Ulam Stability of a General Linear Functional Equation in Modular Spaces
Using the direct method, we prove the Ulam stability results for the general linear functional equation of the form ∑i=1mAi(fφi(x¯))=D(x¯) for all x¯∈Xn, where f is the unknown mapping from a linear space X over a field K∈{R,C} into a linear space Y over field K; n and m are …