Research Article

A Boundary Integral Equation with the Generalized Neumann Kernel for a Certain Class of Mixed Boundary Value Problem

Figure 3

The eigenvalues of the coefficient matrix of the linear systems obtained by discretizing the integral equations (4.1) with for Example 6.1 (a) and with for Example 6.2 (b).
254123.fig.003a
(a)
254123.fig.003b
(b)