Yet another variant of the Drygas functional equation on groups
Yet another variant of the Drygas functional equation on groups
Let G be a group and C the field of complex numbers. Suppose σ1, σ 2 : G → G are endomorphisms satisfying the condition σi(σi(x)) = x for all x in G and for i = 1, 2. In this paper, we find the central solution f : G …