Guo Xiao-jiang
Abstract
In this paper,we investigate the dual of left C-wrpp semigroups,namely,right C-qrpp semigroups.We establish some characterizations of right C-grpp semigroups.In particular,it is proved that a strongly qrpp semigroup is a right C-qrpp semigroup if and only if it is a semilattice of direct products of a left R-cancellation semigroup and a right zero band.
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In this paper,we investigate the dual of left C-wrpp semigroups,namely,right C-qrpp semigroups.We establish some characterizations of right C-grpp semigroups.In particular,it is proved that a strongly qrpp semigroup is a right C-qrpp semigroup if and only if it is a semilattice of direct products of a left R-cancellation semigroup and a right zero band.
Key concepts: Semilattice, Semigroup, Mathematics, Zero (linguistics), Dual (grammatical number), Pure mathematics, Discrete mathematics, Linguistics