Addendum to: The coupling method for solving integral equations
This addendum to: Oper. Theory, Adv. Appl. 12, 39-73 (1984; Zbl 0543.45002) is to note that the first theorem in the paper was known and follows from the Wiener-Hopf theory for operator equations of the form: \(PAP+Q=(I-PAQ)(P+QA^{-1})A=(I-PAQ)(I+QA^{-1}P)(P+QA^{-1}Q)A\) where P, Q are complementary projections.
scientific article; zbMATH DE number 3948980