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Journal of applied and computational topology最新文献

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Homotopical decompositions of simplicial and Vietoris Rips complexes 单纯复形和Vietoris-Rips复形的同态分解
Pub Date : 2020-02-09 DOI: 10.1007/s41468-021-00066-2
W. Chachólski, Alvin Jin, Martina Scolamiero, Francesca Tombari
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引用次数: 7
Contractibility of a persistence map preimage. 持久性映射原映像的可收缩性。
Pub Date : 2020-01-01 Epub Date: 2020-08-28 DOI: 10.1007/s41468-020-00059-7
Jacek Cyranka, Konstantin Mischaikow, Charles Weibel

This work is motivated by the following question in data-driven study of dynamical systems: given a dynamical system that is observed via time series of persistence diagrams that encode topological features of snapshots of solutions, what conclusions can be drawn about solutions of the original dynamical system? We address this challenge in the context of an N dimensional system of ordinary differential equation defined in R N . To each point in R N (e.g. an initial condition) we associate a persistence diagram. The main result of this paper is that under this association the preimage of every persistence diagram is contractible. As an application we provide conditions under which multiple time series of persistence diagrams can be used to conclude the existence of a fixed point of the differential equation that generates the time series.

这项工作的动机是在数据驱动的动力系统研究中的以下问题:给定一个动力系统,通过编码解决方案快照的拓扑特征的持久性图的时间序列来观察,可以得出关于原始动力系统的解决方案的什么结论?我们在定义为rn的N维常微分方程系统的背景下解决了这一挑战。对于rn中的每个点(例如初始条件),我们关联一个持久性图。本文的主要结果是在这种关联下,每个持久化图的原象都是可压缩的。作为一个应用,我们提供了一些条件,在这些条件下,持久性图的多个时间序列可以用来得出生成时间序列的微分方程的不动点的存在性。
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引用次数: 6
On the hardness of finding normal surfaces 关于寻找法向表面的硬度
Pub Date : 2019-12-19 DOI: 10.1007/s41468-021-00076-0
Benjamin A. Burton, Alexander He
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引用次数: 0
The Rado simplicial complex 拉多简单复合体
Pub Date : 2019-12-05 DOI: 10.1007/s41468-021-00069-z
M. Farber, Lewis Mead, Lewin Strauss
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引用次数: 7
Digital fundamental groups and edge groups of clique complexes 集团复合体的数字基群和边群
Pub Date : 2019-10-17 DOI: 10.1007/s41468-022-00095-5
G. Lupton, N. Scoville
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引用次数: 5
Spaces of directed paths on pre-cubical sets II 前立方集上有向路径的空间Ⅱ
Pub Date : 2019-08-30 DOI: 10.1007/s41468-019-00040-z
Krzysztof Ziemiański
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引用次数: 14
Configuration spaces of disks in an infinite strip 配置无限条带中的磁盘空间
Pub Date : 2019-08-12 DOI: 10.1007/s41468-021-00070-6
H. Alpert, Matthew Kahle, R. Macpherson
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引用次数: 9
On the topology of complexes of injective words 关于内射词复数的拓扑
Pub Date : 2019-08-09 DOI: 10.1007/s41468-019-00039-6
W. Chachólski, R. Levi, R. Meshulam
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引用次数: 3
Ripser: efficient computation of Vietoris–Rips persistence barcodes Ripser: Vietoris-Rips持久性条码的高效计算
Pub Date : 2019-08-07 DOI: 10.1007/s41468-021-00071-5
Ulrich Bauer
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引用次数: 246
A fundamental group for digital images 数字图像的基本组
Pub Date : 2019-06-14 DOI: 10.1007/s41468-021-00067-1
G. Lupton, J. Oprea, N. Scoville
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引用次数: 14
期刊
Journal of applied and computational topology
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