2018
DOI: 10.1016/j.laa.2017.11.009
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On tropical eigenvalues of tridiagonal Toeplitz matrices

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Cited by 10 publications
(7 citation statements)
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“…In this article, we illustrate how to take advantage of the weighted digraphs associated with pentadiagonal Toeplitz matrices to facilitate finding their characteristic maxpolynomials and therefore their tropical eigenvalues. Note that the structure of the aforementioned graph here is essentially different from that of tridiagonal matrices studied in Reference 31 and hence, the methods and proofs are quite different. In this article, we explicitly compute all the n + 1 terms of the characteristic maxpolynomial of P˜ by using O ( n ) arithmetic operations.…”
Section: Some Tropical and Graph‐theoretical Conceptsmentioning
confidence: 98%
See 1 more Smart Citation
“…In this article, we illustrate how to take advantage of the weighted digraphs associated with pentadiagonal Toeplitz matrices to facilitate finding their characteristic maxpolynomials and therefore their tropical eigenvalues. Note that the structure of the aforementioned graph here is essentially different from that of tridiagonal matrices studied in Reference 31 and hence, the methods and proofs are quite different. In this article, we explicitly compute all the n + 1 terms of the characteristic maxpolynomial of P˜ by using O ( n ) arithmetic operations.…”
Section: Some Tropical and Graph‐theoretical Conceptsmentioning
confidence: 98%
“…In Reference 31, we proposed explicit formulas involving O (1) arithmetic operations for essential terms and also involving O (1) arithmetic operations for tropical eigenvalues of tridiagonal Toeplitz matrices. We proved that such tropical matrices have at most two distinct tropical eigenvalues.…”
Section: Some Tropical and Graph‐theoretical Conceptsmentioning
confidence: 99%
“…Note that matrix M is a block tridiagonal matrix, i.e., a matrix whose blocks are all E except for those in the main diagonal and in the first diagonals above and below the main diagonal. We refer to [43,44] for some work related to tridiagonal matrices in the tropical (i.e., either max-plus or min-plus) algebra.…”
Section: A Proof Of Theoremmentioning
confidence: 99%
“…Over the past decade, there has been an increasing interest in Toeplitz matrices with certain perturbations, see [3,7,8,11,12,14,21,22,27,28,32], or [17,20,23,29] for more general researches. In [11,12] the authors find the characteristic polynomial for some cases of Toeplitz matrices with corner perturbations.…”
Section: Introductionmentioning
confidence: 99%