Persistent cup product structures and related invariants
Persistent cup product structures and related invariants
复制标题
持久杯产品结构和相关不变量
DOI:
10.1007/s41468-023-00138-5
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Zhou, Ling
中科院分区:
文献类型:
--
作者:
Mémoli, Facundo;Stefanou, Anastasios;Zhou, Ling
One-dimensional persistent homology is arguably the most important and heavily used computational tool in topological data analysis. Additional information can be extracted from datasets by studying multi-dimensional persistence modules and by utilizing cohomological ideas, e.g. the cohomological cup product. In this work, given a single parameter filtration, we investigate a certain 2-dimensional persistence module structure associated with persistent cohomology, where one parameter is the cup-lengthand the other is the filtration parameter. This new persistence structure, called thepersistent cup module, is induced by the cohomological cup product and adapted to the persistence setting. Furthermore, we show that this persistence structure is stable. By fixing the cup-length parameter, we obtain a 1-dimensional persistence module, called the persistent-cup module, and again show it is stable in the interleaving distance sense, and study their associated generalized persistence diagrams. In addition, we consider a generalized notion of apersistent invariant, which extends both therank invariant(also referred to aspersistent Betti number), Puuska’s rank invariant induced by epi-mono-preserving invariants of abelian categories, and the recently-definedpersistent cup-length invariant, and we establish their stability. This generalized notion of persistent invariant also enables us to lift the Lyusternik-Schnirelmann (LS) category of topological spaces to a novel stable persistent invariant of filtrations, called thepersistent LS-category invariant.
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影响因子:
1
作者:
Colin Bennett;Ronald A. DeVore;R. Sharpley
通讯作者:
Colin Bennett;Ronald A. DeVore;R. Sharpley
DOI:
--
发表时间:
2017
期刊:
影响因子:
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作者:
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通讯作者:
Parth Sarin
影响因子:
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作者:
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影响因子:
0.8
作者:
Crawley-Boevey, William
通讯作者:
Crawley-Boevey, William
DOI:
10.1090/surv/103
发表时间:
2003-07
期刊:
--
影响因子:
--
作者:
O. Cornea
通讯作者:
O. Cornea