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 Weakly prime ideals in commutative semigroups Bull. Korean Math. Soc. 2019 Vol. 56, No. 4, 829-839 https://doi.org/10.4134/BKMS.b180635Published online July 31, 2019 D. D. Anderson, Sangmin Chun, Jason R. Juett The University of Iowa; Chung-Ang University; Texas State University Abstract : Let $S$ be a commutative semigroup with $0$ and 1. A proper ideal $P$ of $S$ is {\it weakly prime} if for $a,b \in S$, $0 \ne ab \in P$ implies $a \in P$ or $b \in P$. We investigate weakly prime ideals and related ideals of $S$. We also relate weakly prime principal ideals to unique factorization in commutative semigroups. Keywords : weakly prime ideal, prime ideal, commutative semigroup MSC numbers : 20M12, 20M14 Downloads: Full-text PDF   Full-text HTML