2019
DOI: 10.1007/s40574-019-00194-9
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A characterization of seminormal C-monoids

Abstract: It is well-known that a C-monoid is completely integrally closed if and only if its reduced class semigroup is a group and if this holds, then the C-monoid is a Krull monoid and the reduced class semigroup coincides with the usual class group of Krull monoids. We prove that a C-monoid is seminormal if and only if its reduced class semigroup is a union of groups. Based on this characterization we establish a criterion (in terms of the class semigroup) when seminormal C-monoids are half-factorial.2010 Mathematic… Show more

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Cited by 5 publications
(1 citation statement)
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“…An integral domain is called halffactorial if its multiplicative monoid is half-factorial. Half-factorial monoids and domains have been systematically investigated during the last six decades in connection with algebraic number theory, combinatorics, and commutative algebra: from work that appeared more than two decades ago, such as [9,17,20,51], to more recent literature, including [26,32,35,42,[46][47][48]. The term "half-factorial" was coined by Zaks in [51].…”
Section: Introductionmentioning
confidence: 99%
“…An integral domain is called halffactorial if its multiplicative monoid is half-factorial. Half-factorial monoids and domains have been systematically investigated during the last six decades in connection with algebraic number theory, combinatorics, and commutative algebra: from work that appeared more than two decades ago, such as [9,17,20,51], to more recent literature, including [26,32,35,42,[46][47][48]. The term "half-factorial" was coined by Zaks in [51].…”
Section: Introductionmentioning
confidence: 99%