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arXiv 1001.0601math.GRmath.GN
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群上的Zebraki拓扑

Zariski topologies on groups

Taras Banakh, Igor Protasov

摘要:

群$G$上的$n$ -th Zebraki拓扑是由$G$上的$\le n$度单项式的余零集构成的子基生成的.证明了对每个群$G$,其第2阶Zebriki拓扑不是离散的,并给出了一个基数连续的群$G$的第2阶Zebriki拓扑具有可数伪特征标的例子.另一方面,Ol'shanskii构造的不可拓扑群$G$具有离散的第665个Zebraki拓扑。

英文摘要:

The $n$-th Zariski topology on a group $G$ is generated by the sub-base consiting of the cozero sets of monomials of degree $\le n$ on $G$. We prove that for each group $G$ the 2-nd Zariski topology is not discrete and present an example of a group $G$ of cardinality continuum whose 2-nd Zariski topology has countable pseudocharacter. On the other hand, the non-topologizable group $G$ constructed by Ol'shanskii has discrete 665-th Zariski topology.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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