Abstract
We show that the submonoid of all n×n triangular tropical matrices satisfies a nontrivial semigroup identity and provide a generic construction for classes of such identities. The utilization of the Fibonacci number formula gives us an upper bound on the length of these 2-variable semigroup identities.
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The author thanks Glenn Merlet for the useful conversation in CIRM, Luminy, September 2011. The author would like to thank the referee for many valuable comments and helpful suggestions.
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Communicated by Jean-Eric Pin.
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Izhakian, Z. Semigroup identities in the monoid of triangular tropical matrices. Semigroup Forum 88, 145–161 (2014). https://doi.org/10.1007/s00233-013-9507-6
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DOI: https://doi.org/10.1007/s00233-013-9507-6