On a Problem of Nathanson Related to Minimal Additive Complements
On a Problem of Nathanson Related to Minimal Additive Complements
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DOI:
10.1137/12087339x
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发表时间:
2012-10
期刊:
影响因子:
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通讯作者:
Yong-Gao Chen;Quan-Hui Yang
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文献类型:
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作者:
Yong-Gao Chen;Quan-Hui Yang
Let $C$ and $W$ be two subsets of $\mathbf{Z}$. The set $C$ is called an additive complement to $W$ in $\mathbf{Z}$ if $C+W=\mathbf{Z}$. An additive complement $C$ to $W$ is said to be minimal if no proper subset of $C$ is an additive complement to $W$ in $\mathbf{Z}$. In this paper, we deal with a problem of Nathanson on minimal additive complements and show that if $\inf W=-\infty $ and $\sup W=+\infty$, then there exists a minimal additive complement to $W$ in $\mathbf{Z}$. The conclusion is not true if $\inf W>-\infty $ or $\sup W<+\infty$.