整数中作为极小可加补数产生的集合
Sets Arising as Minimal Additive Complements in the Integers
摘要：
阿贝尔群$G$的子集$C$是$W \subseteq G$的最小加法补，如果对任意真子集$C' \subset C$，$C + W = G$和$C' + W \neq G$都是。在本文中，我们研究了哪些整数集合作为最小加法补出现。我们证实了Kwon的一个猜想，证明了具有任意大间隙的有界下集是作为最小的加法补充而出现的。此外，我们的建设表明，任何这样的集合属于一个共同的最小对，加强了一个结果的Biswas和Saha的空缺序列。我们绑定的上，下Banach密度的syndetic集，作为最小的添加剂补充有限集。本文给出了最终周期集成为极小可加补集的若干必要条件，并证明了这些必要条件对于某些类最终周期集也是充分的.最后，我们给出了关于极小可加补数结构的几个定理和问题。
英文摘要：
A subset $C$ of an abelian group $G$ is a minimal additive complement to $W \subseteq G$ if $C + W = G$ and if $C' + W \neq G$ for any proper subset $C' \subset C$. In this paper, we study which sets of integers arise as minimal additive complements. We confirm a conjecture of Kwon, showing that bounded-below sets with arbitrarily large gaps arise as minimal additive complements. Moreover, our construction shows that any such set belongs to a co-minimal pair, strengthening a result of Biswas and Saha for lacunary sequences. We bound the upper and lower Banach density of syndetic sets that arise as minimal additive complements to finite sets. We provide some necessary conditions for an eventually periodic set to arise as a minimal additive complement and demonstrate that these necessary conditions are also sufficient for certain classes of eventually periodic sets. We conclude with several conjectures and questions concerning the structure of minimal additive complements.
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