Abstract
The objective of this note is to approximate a birth and death matrix B by a close Toeplitz-type one for which explicit formulas for the eigenpairs are known. Numerical evidence of the approximation behavior of the eigenvalues and eigenvectors of B by those of such Toeplitz-type matrices is provided.

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The authors thank the referees for the valuable suggestions.
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Communicated by Jinyun Yuan.
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This work was partially supported by project UID/MAT/00324/2019. This work was partially supported by FCT- Fundação para a Ciência e Tecnologia, under project UID/MAT/04721/2020.
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Bebiano, N., Furtado, S. Approximating the eigenvalues and eigenvectors of birth and death matrices. Comp. Appl. Math. 39, 279 (2020). https://doi.org/10.1007/s40314-020-01327-z
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DOI: https://doi.org/10.1007/s40314-020-01327-z