Abstract

In this paper, we consider the semiring [Formula: see text] of all [Formula: see text] matrices over a distributive lattice [Formula: see text] and extended Green’s relations [Formula: see text] and [Formula: see text] using [Formula: see text]-ideals. A (left, right) ideal [Formula: see text] of a semiring [Formula: see text] is called a (left, right) [Formula: see text]-ideal if [Formula: see text], where [Formula: see text]. We define [Formula: see text] and [Formula: see text] on a [Formula: see text]-regular semiring [Formula: see text], in which [Formula: see text] is a semilattice, as follows: [Formula: see text] if [Formula: see text] and [Formula: see text] if [Formula: see text], where [Formula: see text] is the left [Formula: see text]-ideal generated by [Formula: see text] and [Formula: see text] is the right [Formula: see text]-ideal generated by [Formula: see text]. Here we characterize [Formula: see text] and [Formula: see text] in [Formula: see text] in terms of rows and columns of the matrices.

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