Leopold B. Felsen
Dept. of Aerospace & Mech. Eng., Boston Univ., 110 Cummington St., Boston, MA 02215
Wiener--Hopf techniques have been applied to a variety of electromagnetic boundary value problems for the past four decades. Examples are presented, together with the techniques used to tackle them. Some questions are then asked concerning the role of Wiener--Hopf model solutions with respect to realistic problem scenarios in electromagnetics or acoustics.