Discrete l1 Approximation by Rational Functions |
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| Authors: | WATSON G A |
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| Institution: |
Department of Mathematical Sciences, University of Dundee Dundee DD1 4HN, Scotland
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| Abstract: | The problem of finding a best approximation by a rational functionto discrete data, using the l1 norm, is considered. An algorithmis developed which is frequently convergent in a finite numberof steps, and failing this usually has a second-order convergencerate. Details are given of the application of the algorithmto a number of rational approximation problems. |
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