Author(s)

B. Baltz, A. A. Mammoli and M.S. Ingber

Abstract

Telles* '*, in a series of papers, developed a third-degree polynomial transfor- mation which greatly improved the accuracy of weakly-singular and nearly- singular integral evaluation for a variety of common boundary integral kernel functions. The basic idea of the transformation was that the Jacobian of the transformation would "cancel out" in a sense the singularity or near singu- larity in the kernel function. The net effect was that the Gauss points were clustered within the element close to the singular or nearly-singular point. Through a least-squares error analysis, Telles determined an optimum small value for t

Keywords