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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Orthogonal polynomials on the unit circle satisfying a second-order differential equation with varying polynomial coefficients

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Author(s):
Borrego-Morell, J. ; Ranga, A. Sri
Total Authors: 2
Document type: Journal article
Source: INTEGRAL TRANSFORMS AND SPECIAL FUNCTIONS; v. 28, n. 1, p. 39-55, JAN 2016.
Web of Science Citations: 0
Abstract

Consider the linear second-order differential equation An(z) y{''}+ B-n(z) y' + C(n)y = 0, where A(n)(z) = a(2), nz(2) + a(1,n)z + a(0), n with a(2), n = 0, a2 1, n - 4a2, na0, n = 0,. n. N or a2, n = 0, a1, n = 0,. n. N, Bn(z) = b1, n + b0, nz are polynomials with complex coefficients and Cn. C. Under some assumptions over a certain class of lowering and raising operators, we show that for a sequence of polynomials (fn)8 n = 0 orthogonal on the unit circle to satisfy the differential equation (1.1), the polynomial fn must be of a specific form involving and extension of the Gauss and confluent hypergeometric series. (AU)

FAPESP's process: 12/21042-0 - Orthogonal polynomials with respect to differential operators and matrix orthogonal polynomials
Grantee:Jorge Alberto Borrego Morell
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 09/13832-9 - Orthogonal polynomials, special functions and applications
Grantee:Dimitar Kolev Dimitrov
Support Opportunities: Research Projects - Thematic Grants