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arXiv 0904.1652math.ATmath.PR
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随机$d$ -复形顶同调群消失的门限函数

The threshold function for vanishing of the top homology group of random $d$-complexes

Dmitry N. Kozlov

摘要:

对于正整数$n$和$d$,以及概率函数$0\leq p(n)\leq 1$,我们让$Y_{n,p,d}$表示$n$顶点上所有至多$d$维单纯复形的概率空间,这些复形包含完整的$(d-1)$维骨架,并且其$d$ -单纯形以概率$p(n)$出现.本文对所有的$d\geq 1$,确定了$Y_{n,p,d}$中顶同调群消失的门限函数.

英文摘要:

For positive integers $n$ and $d$, and the probability function $0\leq p(n)\leq 1$, we let $Y_{n,p,d}$ denote the probability space of all at most $d$-dimensional simplicial complexes on $n$ vertices, which contain the full $(d-1)$-dimensional skeleton, and whose $d$-simplices appear with probability $p(n)$. In this paper we determine the threshold function for vanishing of the top homology group in $Y_{n,p,d}$, for all $d\geq 1$.

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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