Banach Journal of Mathematical Analysis

Some results on matrix polynomials in the max algebra

Neda Ghasemizadeh and Gholamreza Aghamollaei

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For any $n \times n$ nonnegative matrix $A$, and any norm $\|.\|$ on $\mathbb{R}^n$, $\eta_{\|.\|}(A)$ is defined as $ \sup\ \{\frac{\|A \otimes x\|}{\|x\|} :\ x\in \mathbb{R}_+^n \ , \ x\neq 0\}.$ Let $P(\lambda)$ be a matrix polynomial in the max algebra. In this paper, we introduce $\eta_{\|.\|}[P(\lambda)]$, as a generalization of the matrix norm $\eta_{\|.\|}(.)$, and we investigate some algebraic properties of this notion. We also study some properties of the maximum circuit geometric mean of the companion matrix of $P(\lambda)$ and the relationship between this concept and the matrices $P(1)$ and coefficients of $P(\lambda)$. Some properties of $\eta_{\|.\|}(\Psi)$, for a bounded set of max matrix polynomials $\Psi$, are also investigated.

Article information

Banach J. Math. Anal., Volume 9, Number 1 (2015), 17-26.

First available in Project Euclid: 19 December 2014

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Mathematical Reviews number (MathSciNet)

Zentralblatt MATH identifier

Primary: 15A80: Max-plus and related algebras
Secondary: 47A30: Norms (inequalities, more than one norm, etc.) 47A56: Functions whose values are linear operators (operator and matrix valued functions, etc., including analytic and meromorphic ones) 15A60: Norms of matrices, numerical range, applications of functional analysis to matrix theory [See also 65F35, 65J05] 15A18: Eigenvalues, singular values, and eigenvectors

Matrix polynomials Max algebra Nonnegative matrices maximum circuit geometric mean


Ghasemizadeh, Neda; Aghamollaei, Gholamreza. Some results on matrix polynomials in the max algebra. Banach J. Math. Anal. 9 (2015), no. 1, 17--26. doi:10.15352/bjma/09-1-2.

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