Abstract
We investigate which types of asymptotic distributions can be generated by the knots of convergent sequences of interpolatory integration rules. It will turn out that the class of all possible distributions can be described exactly, and it will be shown that the zeros of polynomials that are orthogonal with respect to varying weight functions are good candidates for knots of integration rules with a prescribed asymptotic distribution.
Similar content being viewed by others
References
T. Bloom, D.S. Lubinsky and H. Stahl, What distributions of points are possible for convergent sequences of interpolatory integration rules?, submitted to J. Constr. Approx.
P.J. Davis and P. Rabinowitz,Methods of Numerical Integration, 2nd ed. (Academic Press, San Diego, 1984).
M. v. Golotschek, Approximation by incomplete polynomials, J. Approx. Theory 28 (1989) 155–160.
A.A. Gonchar and G. Lopez, On Markov's theorem for multipoint Padé approximants, Mat. Sb. 105 (1947) (1978) Engl. Transl.: Math USSR Sb. 34 (1978) 449–459].
A. Knopfmacher, D.S. Lubinsky and P. Nevai, Freud's conjecture and approximation of reciprocals of weights by polynomials, J. Constr. Approx. 4 (1988) 9–20.
G.G. Lopez, On the asymptotics of the ratio of orthogonal polynomials and the convergence of multipoint Padé approximants, Mat. Sb. 128 (1985) [Engl. Transl.: Math USSR Sb. 56 (1987) 216–229].
G.G. Lopez, Asymptotics of polynomials orthogonal with respect to varying measures, J. Constr. Approx. 5 (1989) 199–219.
G.G. Lorentz, Approximation by incomplete polynomials, in:Padé and Rational Approximation: Theory and Applications, eds. E.B. Saff and R.S. Varga (Academic Press, New York, 1977), pp. 289–302.
D.S. Lubinsky,Strong Asymptotics for Erdös Weights, Pitman Lecture Notes, 202 (Longman-Wiley, New York, 1988)
D.S. Lubinsky, H.N. Mhaskar and E.B. Saff, A proof of Freud's conjecture for exponential weights. J. Constr. Approx. 4 (1988) 65–83.
D.S. Lubinsky and E.B. Saff, Uniform and mean approximation by certain weighted polynomials with applications, J. Constr. Approx. 4 (1988) 21–64.
D.S. Lubinsky and E.B. Saff, Strong Asymptotics for Extremal Polynomials Associated with Weights on ℝ, Lecture Notes in Mathematics 1305 (Springer, New York, 1988).
E.B. Saff, Incomplete and orthogonal polynomials, in:Approximation Theory IV, eds. C.K. Chui, L.L. Schumaker and J.D. Ward (Academic Press, New York, 1983) pp. 219–256.
E.B. Saff, J.L. Ullman, and R.S. Varga, Incomplete polynomials: an electrostatic approach, in:Approximation Theory IV, eds. C.K. Chui, L.L. Schumaker and J.D. Ward (Academic Press, New York 1983) pp. 769–782.
H. Stahl, Non-diagonal Padé approximants to Markov functions, in:Approximation Theory V, eds. C.K. Chui, L.L. Schumaker and J.D. Ward (Academic Press, New York, 1986) pp. 571–574.
H. Stahl and V. Totik, General orthogonal polynomials, in:Encyclopedia of Mathematics (Cambridge University Press, New York, 1992).
G. Szegő,Orthogonal Polynomials, Colloquium Publications 23 (American Math. Soc., Providence, 1975).
J.L. Walsh,Interpolation and Approximation by Rational Functions in the Complex Domain, Colloquium Publications 20 (American Math. Soc., Providence, 1960).
Author information
Authors and Affiliations
Additional information
Research supported by the Deutsche Forschungsgemeinschaft (AZ: Sta 299/4-2).
Rights and permissions
About this article
Cite this article
Bloom, T., Lubinsky, D.S. & Stahl, H. Interpolatory integration rules and orthogonal polynomials with varying weights. Numer Algor 3, 55–65 (1992). https://doi.org/10.1007/BF02141915
Issue Date:
DOI: https://doi.org/10.1007/BF02141915