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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:
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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