期刊
NUMERICAL ALGORITHMS
卷 92, 期 1, 页码 665-692出版社
SPRINGER
DOI: 10.1007/s11075-022-01402-y
关键词
Orthogonal polynomials; Sobolev-type orthogonal polynomials; Jacobi matrices; Five diagonal matrices; Recurrence relations; Laguerre polynomials
This paper discusses the higher-order recurrence relations satisfied by Sobolev-type orthogonal polynomials and their connection with (2N + 1)-banded symmetric semi-infinite matrices. It also explores the relationship between these matrices and the Jacobi matrices associated with the three-term recurrence relation of standard orthonormal polynomials.
It is well known that Sobolev-type orthogonal polynomials with respect to measures supported on the real line satisfy higher-order recurrence relations and these can be expressed as a (2N + 1)-banded symmetric semi-infinite matrix. In this paper, we state the connection between these (2N + 1)-banded matrices and the Jacobi matrices associated with the three-term recurrence relation satisfied by the standard sequence of orthonormal polynomials with respect to the 2-iterated Christoffel transformation of the measure.
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