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arXiv 0812.1868math.NTmath.COmath.GR
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有限阿贝尔p-群中的零和反问题

Inverse zero-sum problems in finite Abelian p-groups

Benjamin Girard

摘要:

本文研究了有限阿贝尔p-群中零和自由序列中极大序模元素的最小个数问题。为此,在有限阿贝尔群的一般情形下,我们引入了一个新的数,并在有限阿贝尔p-群的情形下证明了它的上下界上界.在其他结果中,我们在这里使用的方法使我们能够证明,如果我们用exp(G)表示所考虑的有限阿贝尔p-群G的指数,则G中具有最大可能长度的零和自由序列S必须至少包含exp(G)-1个极大序模元素,这改进了W的先前结果。Gao和A. Geroldinger

英文摘要:

In this paper, we study the minimal number of elements of maximal order within a zero-sumfree sequence in a finite Abelian p-group. For this purpose, in the general context of finite Abelian groups, we introduce a new number, for which lower and upper bounds are proved in the case of finite Abelian p-groups. Among other consequences, the method that we use here enables us to show that, if we denote by exp(G) the exponent of the finite Abelian p-group G which is considered, then a zero-sumfree sequence S with maximal possible length in G must contain at least exp(G)-1 elements of maximal order, which improves a previous result of W. Gao and A. Geroldinger.

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