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Author

A. Böttcher

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Preprint Aug 2026

Condition numbers of block Toeplitz matrices and stability of space-time IgA approximations for the wave and Schr\"odinger equations

In previous work by several authors, the behavior of the condition numbers of banded Toeplitz matrices was studied as the matrix size tends to infinity. In the present contribution, two main directions are pursued. As a first step, we extend this study to block Toeplitz matrices with blocks of fixed size $N$. As in the...

M. Bogoya, A. Böttcher, Matteo Ferrari et al. · 0 citations

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