Solving singular integral equations of Cauchy-type numerically involves solution of a linear system of equations. The number of collocation and quadrature points decides the size of the linear system and an n×n matrix is derived in most cases. Taking more collocation points may yield more accurate numerical solutions as in  and numerical difficulties arising in solving overdetermined system. We show that the coefficient matrix of the overdetermined system obtained by taking more collocation points than quadrature nodes have the generalized inverse.
Bibliographical noteFunding Information:
Research supported by Korean Ministry of Education, BSKI-98-1430 and KOSEF 97-0701-01-01-3. The author wishes to thank R. P. Srivastav for his helpful comments and R. P. Tewarson for his hospitality during the author's visit to SUNY Stony Brook where the final version of the present paper was written.