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arXiv 0802.3527math.CO
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关于3-连通拟阵的收缩超平面元

On contracting hyperplane elements from a 3-connected matroid

Rhiannon Hall

摘要:

设$\tilde{K}_{3,n}$、$n\geq 3$是由$K_{3,n}$通过将三条边添加到大小为3的顶点部分而得到的单图。证明了若$H$是3-连通拟阵$M$和$M \not\cong M^*(\tilde{K}_{3,n})$的超平面,则$H$中存在元素$x$使得与$M/x$相关联的简单拟阵是3-连通的.

英文摘要:

Let $\tilde{K}_{3,n}$, $n\geq 3$, be the simple graph obtained from $K_{3,n}$ by adding three edges to a vertex part of size three. We prove that if $H$ is a hyperplane of a 3-connected matroid $M$ and $M \not\cong M^*(\tilde{K}_{3,n})$, then there is an element $x$ in $H$ such that the simple matroid associated with $M/x$ is 3-connected.

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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