
Accession Number : ADA193903
Title : A Fast Algorithm for the Numerical Evaluation of Conformal Mappings.
Descriptive Note : Research rept.,
Corporate Author : YALE UNIV NEW HAVEN CT DEPT OF COMPUTER SCIENCE
Personal Author(s) : O'Donnell, S T ; Rokhlin, V
PDF Url : ADA193903
Report Date : Jul 1987
Pagination or Media Count : 32
Abstract : An algorithm is presented for the construction of conformal mappings from arbitrary simplyconnected regions in the complex plane onto the unit disk. The algorithm is based on a combination of the KerzmanStein integral equation and the Fast Multipole Method for the evaluation of Cauchytype integrals. Previously published methods of this type have an asymptotic CPU time estimate of the order O (nsquared), where n is the number of nodes in the discretization of the boundary of the region being mapped. The method we present has an estimate of the order O(n), making it an approach of choice in many situations. The performance of the algorithm is illustrated by several numerical examples.
Descriptors : *ALGORITHMS, *CONFORMAL MAPPING, BOUNDARIES, DISKS, ESTIMATES, MULTIPOLARITY, NODES, NUMERICAL ANALYSIS, REGIONS, TIME, FORTRAN, INTEGRAL EQUATIONS, INTEGRALS
Subject Categories : Numerical Mathematics
Distribution Statement : APPROVED FOR PUBLIC RELEASE