On the vanishing of homology in random Čech complexes

On the vanishing of homology in random Čech complexes
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关于随机 Čech 复合体中同源性的消失

DOI:
10.1002/rsa.20697
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发表时间:
2015
影响因子:
1
通讯作者:
S. Weinberger
S. Weinberger
中科院分区:
数学3区
文献类型:
--
作者:
O. Bobrowski;S. Weinberger

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我们计算了d维环面上齐次泊松过程上随机Čech配合物的同调性,并表明存在两个粗略的相变。第一个转变类似于Erdős‐rsamnyi相变,其中Čech络合物连接起来。第二个转换是正确计算所有其他同源群的地方(几乎同时计算)。我们的计算还提出了一个更精细的尺度测量,其中有一个进一步的细化,这幅图和不同的同源群之间的分离。©2016 Wiley期刊公司随机结构。Alg。, 51, 14-51, 2017
We compute the homology of random Čech complexes over a homogeneous Poisson process on the d‐dimensional torus, and show that there are, coarsely, two phase transitions. The first transition is analogous to the Erdős ‐Rényi phase transition, where the Čech complex becomes connected. The second transition is where all the other homology groups are computed correctly (almost simultaneously). Our calculations also suggest a finer measurement of scales, where there is a further refinement to this picture and separation between different homology groups. © 2016 Wiley Periodicals, Inc. Random Struct. Alg., 51, 14–51, 2017
随机 2-复合体的拓扑
DOI: 10.1007/s00454-011-9378-0
发表时间: 2011
影响因子: 0.8
作者:
Cohen D
通讯作者: Cohen D