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Positive definiteness of tridiagonal matrices via the numerical range

Electronic Journal of Linear Algebra (1998) 3 93-102
DOI: 10.13001/1081-3810.1016
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Abstract

The authors use a recent characterization of the numerical range to obtain several conditions for a symmetric tridiagonal matrix with positive diagonal entries to be positive definite.

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APA

Chien, M. T., & Neumann, M. (1998). Positive definiteness of tridiagonal matrices via the numerical range. Electronic Journal of Linear Algebra, 3, 93–102. https://doi.org/10.13001/1081-3810.1016

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