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arXiv:2209.01616 [math.CA]AbstractReferencesReviewsResources

Note on Error Bound for Trace Approximation of Products of Toeplitz Matrices

Tetsuya Takabatake

Published 2022-06-10Version 1

We investigate error orders for integral limit approximations to traces of products of Toeplitz matrices generated by integrable functions on $[-\pi,\pi]$ having some singularities at the origin. Even though a sharp error order of the above approximation is derived in Theorem~2 of \cite{Lieberman-Phillips-2004}, its proof contains an inaccuracy as pointed out by \cite{Ginovyan-Sahakyan-2013}. In the present paper, we reinvestigate the claim given in Theorem~2 of \cite{Lieberman-Phillips-2004} and give an alternative proof of their claim.

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