In this paper, another relationship between the quasi-ideal adequate transversals of an abundant semigroup is given. We introduce the concept of a weakly multiplicative adequate transversal and the classic result that an adequate transversal is multiplicative if and only if it is weakly multiplicative and a quasi-ideal is obtained. Also, we give two equivalent conditions for an adequate transversal to be weakly multiplicative. We then consider the case when $I$ and $\Lambda$ (defined below) are bands. This is analogous to the inverse transversal if the regularity condition is adjoined.

Keywords:

abundant semigroup, adequate transversal, Green's $*$-relations, quasi-ideal abundant semigroup, adequate transversal, Green's $*$-relations, quasi-ideal

MSC Classifications:

20M10 show english descriptions General structure theory 20M10 - General structure theory

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