1. The Wiener-Hopf technique is mentioned in a number of books; for a comprehensive review of the method see Noble (1958).
2. This problem may also be solved using the Kontorovich-Lebedev transform: see Sections 17.4–5.
3. One form of Liouville’s theorem is as follows: if E(z) is an entire function, and if then E(z) is a polynomial of degree n, where n is an integer less than or equal to Re(s). See Ahlfors (1966), pp. 122-123.
4. See Section 10.4 for another example of this transformation, which is also discussed at some length in Noble (1958), p. 31ff.
5. See Noble (1958), p. 93ff. for a list and some references. In addition to problems in one complex variable, Kraut has considered mixed boundary value problems which may be resolved using a Wiener-Hopf type of decomposition in two complex variables. See E. A. Kraut, Proc. Amer. Math. Soc. (1969), 23, 24, and further references given there.