Results 21 to 30 of about 10,628 (259)
Possible spectra of totally positive matrices
Linear Algebra and its Applications, 1984 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Barrett, Wayne W., Johnson, Charles R.
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Entropy, 2023 The geometric first-order integer-valued autoregressive process (GINAR(1)) can be particularly useful to model relevant discrete-valued time series, namely in statistical process control.
Manuel Cabral Morais
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Arrangements of equal minors in the positive Grassmannian [PDF]
Discrete Mathematics & Theoretical Computer Science, 2014 We discuss arrangements of equal minors in totally positive matrices. More precisely, we would like to investigate the structure of possible equalities and inequalities between the minors.
Miriam Farber, Alexander Postnikov
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International Journal of Food Properties, 2022 Several scientific researchers have focused on biological activities of edible plants such as radish. However, there are no researches on the anticancer effect of this plant in human glioblastoma.
Nadhem Aissani, Hichem Sebai
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On Total Positivity of Catalan-Stieltjes Matrices
The Electronic Journal of Combinatorics, 2016 Recently Chen-Liang-Wang (Linear Algerbra Appl. 471 (2015) 383—393) proved some sufficient conditions for the total positivity of Catalan-Stieltjes matrices. Our aim is to provide a combinatorial interpretation of their sufficiant conditions. More precisely, for any Catalan-Stieltjes matrix $A$ we construct a digraph with a weight, which is positive ...
Pan, Qiongqiong, Zeng, Jiang
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Line Insertions in Totally Positive Matrices
Journal of Approximation Theory, 2000 It is obvious that between any two rows (columns) of an \(m\)-by-\(n\) totally nonnegative matrix a new row (column) may be inserted to form an \((m+ 1)\)-by-\(n\) \((m\)-by-\((n+1))\) totally nonnegative matrix. The analogous question, in which ``totally negative'' is replaced by ``totally positive'' arises, for example, in completion problems and in ...
Johnson, Charles R., Smith, Ronald L.
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Equal entries in totally positive matrices
Linear Algebra and its Applications, 2014 15 ...
Farber, Miriam +3 more
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Error analysis, perturbation theory and applications of the bidiagonal decomposition of rectangular totally-positive h-Bernstein-Vandermonde matrices [PDF]
, 2021 A fast and accurate algorithm to compute the bidiagonal decomposition of rectangular totally positive h-Bernstein-Vandermonde matrices is presented.
Viaña Fernández, Raquel +2 more
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Eigenvalue Localization for Symmetric Positive Toeplitz Matrices
AxiomsGiven a real symmetric matrix, several inclusion and exclusion intervals containing its eigenvalues can be given. In this paper, for symmetric positive Toeplitz matrices, we provide an inclusion interval and, under an additional hypothesis, we also give ...
Juan M. Peña
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Total positivity of Toeplitz matrices of recursive hypersequences
Ars Mathematica Contemporanea, 2019 We present a new class of totally positive Toeplitz matrices composed of recently introduced hyperfibonacci numbers of the $r$-th generation. As a consequence, we obtain that all sequences $F_n^{; ; ; ; ; ; (r)}; ; ; ; ; ; $ of hyperfibonacci numbers of $r$-th generation are log-concave for $r \geq 1$ and large enough $n$.
Tomislav Doslic +2 more
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