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arXiv · 1102.1555

Cyclotomic matrices over the Eisenstein and Gaussian integers

Gary Greaves
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Abstract

We classify all cyclotomic matrices over the Eisenstein and Gaussian integers, that is, all Hermitian matrices over the Eisenstein and Gaussian integers that have all their eigenvalues in the interval [-2, 2].

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Gary Greaves. 2011-02-08. Cyclotomic matrices over the Eisenstein and Gaussian integers. https://doi.org/10.1016/j.jalgebra.2012.09.006

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