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On semigroups of matrices over the tropical semiring. (English) Zbl 0888.68086

Summary: The tropical semiring \(\mathcal M\) consists of the set of natural numbers extended with infinity, equipped with the operations of taking minimums (as semiring addition) and addition (as semiring multiplication). We use factorization forests to prove finiteness results related to semigroups of matrices over \(\mathcal M\). Our method is used to recover results of Hashiguchi, Leung and the author in a unified combinatorial framework.

MSC:

68Q45 Formal languages and automata
68R05 Combinatorics in computer science
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References:

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