QUALOCATION METHODS FOR ELLIPTIC BOUNDARY INTEGRAL-EQUATIONS

The qualocation methods developed in this paper, with spline trial and test spaces, are suitable for classes of boundary integral equations with convolutional principal part, on smooth closed curves in the plan e. Some of the methods are suitable for all strongly elliptic equation s; that is, for equations in which the even symbol part of the operato r dominates. Other methods are suitable when the odd part dominates.