Products of k atoms in Krull monoids

被引:5
|
作者
Fan, Yushuang [1 ]
Zhong, Qinghai [2 ]
机构
[1] China Univ Geosci, Math Coll, Beijing, Peoples R China
[2] Graz Univ, Inst Math & Sci Comp, NAWI Graz, Heinrichstr 36, A-8010 Graz, Austria
来源
MONATSHEFTE FUR MATHEMATIK | 2016年 / 181卷 / 04期
基金
奥地利科学基金会;
关键词
Non-unique factorizations; Sets of lengths; Krull monoids; Zero-sum sequences; DAVENPORT CONSTANT; DECOMPOSITIONS; FACTORIZATION; MODULES; DOMAINS;
D O I
10.1007/s00605-016-0942-9
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let H be a Krull monoid with finite class group G such that every class contains a prime divisor. For , let denote the set of all with the following property: There exist atoms such that . It is well-known that the sets are finite intervals whose maxima depend only on G. If , then for every . Suppose that . An elementary counting argument shows that and where is the Davenport constant. In [11] it was proved that for cyclic groups we have for every . In the present paper we show that (under a reasonable condition on the Davenport constant) for every noncyclic group there exists a such that for every . This confirms a conjecture of A. Geroldinger, D. Grynkiewicz, and P. Yuan in [13].
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页码:779 / 795
页数:17
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