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arXiv 1102.2707math.RA
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Green的J-阶与热带矩阵的秩

Green's J-order and the rank of tropical matrices

Marianne Johnson, Mark Kambites

摘要:

研究了热带半环上n阶矩阵半群的Green J-序和J-等价。我们给出了一个确切的表征的J-顺序,在热带凸集之间的态射。我们建立J-秩序,等距的热带凸集,和各种概念的热带矩阵的秩之间的联系。Izhakian和Margolis已经观察到对于热带半环上的所有3 × 3矩阵半群的$D \neq J$与$-\infty$,但是相反,我们证明了对于有限热带半环上的所有满矩阵半群的$D = J$.

英文摘要:

We study Green's J-order and J-equivalence for the semigroup of all n-by-n matrices over the tropical semiring. We give an exact characterisation of the J-order, in terms of morphisms between tropical convex sets. We establish connections between the J-order, isometries of tropical convex sets, and various notions of rank for tropical matrices. We also study the relationship between the relations J and D; Izhakian and Margolis have observed that $D \neq J$ for the semigroup of all 3-by-3 matrices over the tropical semiring with $-\infty$, but in contrast, we show that $D = J$ for all full matrix semigroups over the finitary tropical semiring.

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