Let B(Z) be the Banach dual of the space of all bounded complex-value
d functions on b. For each n is an element of Z, let L(n) be the trans
lation operator on B(Z) and T-n be its adjoint operator on B(Z). This
paper concerns itself with equations of the form [GRAPHICS] where (a(
n))n is an element of Z is a sequence of complex numbers.