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Irreducible, pattern \(k\)-potent ray pattern matrices - MaRDI portal

Irreducible, pattern \(k\)-potent ray pattern matrices (Q1603003)

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scientific article; zbMATH DE number 1758617
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Irreducible, pattern \(k\)-potent ray pattern matrices
scientific article; zbMATH DE number 1758617

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    Irreducible, pattern \(k\)-potent ray pattern matrices (English)
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    24 June 2002
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    This paper deals with ray patterns, sets of matrices in which each matrix entry is independently specified as 0 or as a product of a certain complex number times all positive real numbers, hence a ray. Irreducible nonzero ray patterns such that \(A^{k+1}=A\) up to similarity by permutations and diagonal matrices are classified in Theorem 10 as being a root of unity times a block circulant in which all the blocks are real.
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    ray pattern matrix
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    \(k\)-potent matrix
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    block circulant matrix
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    irreducibility
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