Convergence rates for exponential interpolation series |
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Authors: | John W. Layman |
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Affiliation: | Department of Mathematics, Virginia Polytechnic and State University, Blacksburg, Virginia 24061 U.S.A. |
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Abstract: | An analysis of the rate of convergence is made for the interpolation series based on the biorthogonal system (nΔ)ƒ(0) and en(z) = Δnxz ¦x−1, which was recently shown to be convergent for certain entire functions of exponential type. An error bound is obtained which is shown to vary as a negative power of the number of terms in the partial sum. Comparison is made with numerical calculations in a few simple cases and certain practical applications are mentioned. |
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