An efficient and novel numerical method for quasiconformal mappings of doubly connected domains |
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Authors: | Prabir Daripa Daoud Mashat |
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Affiliation: | (1) Department of Mathematics, Texas A&M University, College Station, TX 77843-3368, USA |
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Abstract: | A numerical method for quasiconformal mapping of doubly connected domains onto annuli is presented. The ratio R of the radii of the annulus is not known a priori and is determined as part of the solution procedure. The numerical method presented in this paper requires solving iteratively a sequence of inhomogeneous Beltrami equations, each for a different R. R is updated using a procedure based on the bisection method. The new method is an extension of Daripas method for the quasiconformal mapping of the exterior of simply connected domains onto the interior of unit disks [15]. It uses fast and accurate algorithms for evaluating certain singular integrals and is, thus, very efficient and accurate. Its performance is demonstrated for several doubly connected domains. |
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Keywords: | quasiconformal mapping Beltrami equation fast algorithm 17-08 30C75 45G05 65E05 65Y20 |
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