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Published online by Cambridge University Press: 14 November 2011
Let B(ℤ)* be the Banach dual of the space of all bounded complex-valued functions on ℤ. For each n ε ℤ, let Ln be the translation operator on B(ℤ) and Tn be its adjoint operator on B(ℤ)*. This paper concerns itself with equations of the form
where (an)nεℤ is a sequence of complex numbers.