Find a formula for the eigenvalues of the tricirculant n n matrix Zn that has 1's

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Find a formula for the eigenvalues of the tricirculant n × n matrix Zn that has 1's on the sub- and super-diagonals as well as its (l, n) and (n, 1) entries, while all other entries are 0.
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Applied Linear Algebra

ISBN: 978-0131473829

1st edition

Authors: Peter J. Olver, Cheri Shakiban

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