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arXiv 1403.0146math.GT
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$\mathbb{RP}^n$的少顶点三角剖分

Triangulations of $\mathbb{RP}^n$ with few vertices

Soumen Sarkar

摘要:

P. Arnoux和A. Marin表明,如果是$n \geq 3$,则$\mathbb{RP}^n$的任何三角剖分都包含多于一个$\frac{(n+1)(n+2)}{2}$顶点。对所有$n \geq 3$,我们构造了一些自然的三角剖分的$\mathbb{RP}^n$与$\frac{n(n+5)}{2}-1$顶点。以前,已知$\mathbb{RP}^n$具有$\mathbb{Z}_2^n$ -等变三角剖分,其具有用于$n \geq 6$的$n(n+1)$顶点。

英文摘要:

P. Arnoux and A. Marin showed that any triangulation of $\mathbb{RP}^n$ contains more than $\frac{(n+1)(n+2)}{2}$ vertices if $n \geq 3$. We construct some natural triangulation of $\mathbb{RP}^n$ with $\frac{n(n+5)}{2}-1$ vertices for all $n \geq 3$. Previously, it was known that $\mathbb{RP}^n$ has $\mathbb{Z}_2^n$-equivariant triangulation with $n(n+1)$ vertices for $n \geq 6$.

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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