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Accelerating the convergence of power series of certain entire functions

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Summary

Due to cancellation, the numerical evaluation of an entire function by its Taylor series expansion may become a difficult task whenever terms of large modulus are required to evaluate a small result. In this paper, we propose methods to evaluate entire functionsF of order 1 and type 0<τ<∞. It is shown that this problem may be reduced to the approximation of the exponential function by polynomials. Thus, polynomial interpolation of exp (y) gives an effective tool to accelerate the convergence of the Taylor series ofF. After having done this successfully we consider an example and find that incidentally the problem of large alternating terms has been mitigated.

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References

  1. Batyrev, A.V.: On the question of best approximation of analytic functions by polynomials. Dokl. Adad. Nauk SSSR76, 173–175 (1951) (Russian)

    Google Scholar 

  2. Boas, R.Ph., Jr.: Entire Functions. New York: Academic Press 1954

    Google Scholar 

  3. Brezinski, C.: Padé-Type Approximation and General Orthogonal Polynomials. ISNM 50. Basel, Boston, Stuttgart: Birkhäuser 1980

    Google Scholar 

  4. Eiermann, M.: Numerische Analytische Fortsetzung durch Interpolationsverfahren, Dissertation, Universität Karlsruhe 1982

  5. Eiermann, M., Niethammer, W.: Interpolation methods for numerical analytic continuation. ISNM61, 131–141, Basel, Boston, Stuttgart: Birkhäuser 1982

    Google Scholar 

  6. Eiermann, M., Niethammer, W., Varga, R.S.: A study of semiiterative methods for nonsymmetric systems of linear equations. Numer. Math.47, 505–534 (1985)

    Article  Google Scholar 

  7. Gabutti, B., Lyness, J.N.: An acceleration method for the power series of entire functions of order 1. Math. Comput.39, 587–597 (1982)

    Google Scholar 

  8. Gaier, D.: Vorlesungen über Approximation im Komplexen. Basel, Boston, Stuttgart: Birkhäuser 1980

    Google Scholar 

  9. Gawronski, W., Trautner, R.: Verschärfung eines Satzes von Borel-Okada über Summierbarkeit von Potenzreihen. Period. Math. Hung.7, 201–211 (1976)

    Google Scholar 

  10. Henrici, P.: Applied Computational Complex Analysis, Vol. II. New York, London, Sydney, Toronto: Wiley 1977

    Google Scholar 

  11. Hille, E.: Analytic Function Theory, Vol. II Blaisdell Publ. Computer. Mass., Toronto, London: Waltham 1962

    Google Scholar 

  12. Niethammer, W.: Numerical application of Euler's series transformation and its generalizations. Numer. Math.34, 271–283 (1980)

    Google Scholar 

  13. Pittnauer, F.: Vorlesungen über asymptotische Reihen. Lecture Notes in Mathematics 301. Berlin, Heidelberg, New York: Springer 1972

    Google Scholar 

  14. Rice, J.R.: The degree of convergence for entire functions. Duke Math. J.38, 429–440 (1971)

    Google Scholar 

  15. Walsh, J.L.: Interpolation and Approximation by Rational Functions in the Complex Domain. Amer. Math. Soc. Colloq. Publ., Vol. XX, 3rd ed. 1960

  16. Wild, P.: Konvergenzbeschleunigung von Potenzreihen ganzer Funktionen vom Normaltyp der Ordnung Eins. Dissertation, Universität Karlsruhe 1986

  17. Winiarski, T.: Approximation and interpolation of entire functions. Ann. Polon. Math.XXIII, 259–273 (1970)

    Google Scholar 

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Wild, P. Accelerating the convergence of power series of certain entire functions. Numer. Math. 51, 583–595 (1987). https://doi.org/10.1007/BF01400358

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