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A new multidimensional rational approximant. (English) Zbl 0686.41015
The authors propose a rational approximation procedure in several variables based on interpolation to a selection of Taylor coefficients. They argue the superiority of their selection over others that can be found in the literature and give an example of a two-dimensional filter (rational function calculated from part of a desired impulse response).
Reviewer: J.Karlsson

MSC:
41A21 Padé approximation
41A20 Approximation by rational functions
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