Emergent Mind
Higher-order recurrence relations, Sobolev-type inner products and matrix factorizations
(2203.03318)
Published Mar 7, 2022
in
math.CA
,
cs.NA
,
and
math.NA
Abstract
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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