  A particular mix of integral equations and discretization techniques is
suggested for the solution of a planar Helmholtz transmission problem with
relevance to the study of surface plasmon waves. The transmission problem
describes the scattering of a time harmonic transverse magnetic wave from an
infinite dielectric cylinder with complex permittivity and sharp edges.
Numerical examples illustrate that the resulting scheme is capable of obtaining
total magnetic and electric fields to very high accuracy in the entire
computational domain.
