CHARACTERIZATION OF CLASSICAL TYPE ORTHOGONAL POLYNOMIALS

Citation
Kh. Kwon et al., CHARACTERIZATION OF CLASSICAL TYPE ORTHOGONAL POLYNOMIALS, Proceedings of the American Mathematical Society, 120(2), 1994, pp. 485-493
Citations number
14
Categorie Soggetti
Mathematics, General",Mathematics
ISSN journal
00029939
Volume
120
Issue
2
Year of publication
1994
Pages
485 - 493
Database
ISI
SICI code
0002-9939(1994)120:2<485:COCTOP>2.0.ZU;2-2
Abstract
We characterize the classical type orthogonal polynomials {P(n)(x)}0in finity satisfying a fourth-order differential equation of type [GRAPHI CS] where l(i)(x) are polynomials of degree less-than-or-equal-to i an d lambda(n) is a constant. They are only the orthogonal polynomials sa tisfying an orthogonality of the form [tau2, P(m)''P(n)'') + [tau1, P( m)'P(n)'] + [tau0, P(m)P(n)] = 0 for m not-equal n where tau0, tau1, a nd tau2 are moment functionals.