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Rational Pál type \((0,1;0)\)-interpolation and quadrature formula with Chebyshev-Markov fractions. (English) Zbl 1507.41001

Summary: We present a Pál-type \((0,1; 0)\)-interpolation on an inter-scaled set of nodes, when Hermite and Lagrange data are prescribed on the zeros of Chebyshev-Markov sine fraction \(U_n(x)\) and its derivative \(U_n^\prime(x)\),respectively. A quadrature formula based on the obtained Pál-type interpolation has been constructed. Coefficients of this quadrature are obtained in the explicit form.

MSC:

41A05 Interpolation in approximation theory
41A20 Approximation by rational functions

References:

[1] P. Borwein, T. Erd´elyi,Polynomials and Polynomial Inequalities. Graduate Texts in Mathematics, 161. SpringerVerlag, New York, 1995. · Zbl 0840.26002
[2] C. Cesarano, Integral representations and new generating functions of Chebyshev polynomials.Hacet. J. Math. Stat. 44(2015), no. 3, 535-546. · Zbl 1336.33021
[3] C. Cesarano, Multi-dimensional Chebyshev polynomials: a non-conventional approach.Commun. Appl. Ind. Math. 10(2019), no. 1, 1-19. · Zbl 1422.33003
[4] C. Cesarano, C. Fornaro, A note on two-variable Chebyshev polynomials.Georgian Math. J.24(2017), no. 3, 339-349. · Zbl 1373.33015
[5] C. Cesarano, S. Pinelas, P. E. Ricci, The third and fourth kind pseudo-Chebyshev polynomials of half-integer degree. Symmetryno. 2,11(2019), 1-11. · Zbl 1416.33020
[6] C. Cesarano, P. E. Ricci, Orthogonality Properties of the Pseudo-Chebyshev Functions (Variations on a Chebyshev’s Theme).Mathematics7(2019), no. 2, 1-11.
[7] S. Kumar, N. Mathur, V. N. Mishra, P. Mathur, Radau Quadrature for an Almost Quasi-Hermite-Fejer-Type Interpolation in Rational Spaces.Int. Jour. of Anal. and Appl.19(2021), no. 2, 180-192.
[8] A. L. Lukashov, Inequalities for the derivatives of rational functions on several intervals. (Russian)translated from Izv. Ross. Akad. Nauk Ser. Mat.68(2004), no. 3, 115-138Izv. Math.68(2004), no. 3, 543-565. · Zbl 1088.42016
[9] A. A. Markov,Izbrannye Trudy. Teoriya ˘cisel. Teoriya veroyatnoste˘i. (Russian) [Selected works. Theory of numbers. Theory of probability.] Izdat. Akad. Nauk SSSR, Leningrad, 1951.
[10] G. Min, Lobatto-type quadrature formula in rational spaces.J. Comput. Appl. Math.94(1998), no. 1, 1-12. · Zbl 0928.41022
[11] E. A. Rouba,Interpoljacija i Rjady Furie v Ratsionalnoj Approksimatsii. GrSU, Grodno, 2001.
[12] Y. Rouba, K. Smatrytski, Y. Dirvuk, Rational quasi-Hermite-Fej´er-type interpolation and Lobatto-type quadrature formula with Chebyshev-Markov nodes.Jaen J. Approx.7(2015), no. 2, 291-308. · Zbl 1379.41012
[13] E. A. Rovba, Interpolation rational operators of Fej´er and de la Vall´ee-Poussin type. (Russian)Mat. Zametki53 (1993), no. 2, 114-121translated from Math. Notes.53(1993), no.2, 195-200. · Zbl 0811.41014
[14] Y. A. Rovba, K. A. Smatrytski, Rational interpolation in the zeros of Chebyshev-Markov sine-fractions. (Russian) Dokl. Nats. Akad. Nauk Belarusi52(2008), no. 5, 11-15, 124. · Zbl 1260.41003
[15] V. N. Rusak, Interpolation by rational functions with fixed poles. (Russian)Dokl. Akad. Nauk BSSR6(1962), 548-550. · Zbl 0144.31503
[16] V. N. Rusak, On approximations by rational fractions. (Russian)Dokl. Akad. Nauk BSSR8(1964), 432-435. · Zbl 0144.31901
[17] V. N. Rusak,Rational Functions as Approximation Apparatus. (Russian) Beloruss. Gos. Univ. Minsk, 1979.
[18] A. H. Turecki,Teorija Interpolirovanija v Zadachakh. Izdat Vyssh. Skola, Minsk, 1968.
[19] J. Van Deun, Electrostatics and ghost poles in near best fixed pole rational interpolation.Electron. Trans. Numer. Anal.26(2007) · Zbl 1176.33015
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