2024
DOI: 10.1002/nla.2550
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Total positivity and high relative accuracy for several classes of Hankel matrices

E. Mainar,
J.M. Peña,
B. Rubio

Abstract: SummaryGramian matrices with respect to inner products defined for Hilbert spaces supported on bounded and unbounded intervals are represented through a bidiagonal factorization. It is proved that the considered matrices are strictly totally positive Hankel matrices and their catalecticant determinants are also calculated. Using the proposed representation, the numerical resolution of linear algebra problems with these matrices can be achieved to high relative accuracy. Numerical experiments are provided, and … Show more

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