Cores of Simplicial Complexes

Cores of Simplicial Complexes
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单纯复形的核心

DOI:
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发表时间:
2007
影响因子:
0.8
通讯作者:
D. Testa
D. Testa
中科院分区:
数学3区
文献类型:
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作者:
M. Marietti;D. Testa

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我们引入了一种方法,可以将对单纯复形拓扑的研究减少到更简单拓扑的研究。将这种方法应用于由图产生的复合体,我们赋予经典图不变量拓扑意义。因此,我们回答了(Ehrenborg and Hetyei in Eur. J. Comb. 27(6):906–923, 2006)中提出的关于森林的独立复数和支配复数的一些问题,并获得了计算其同伦类型的改进算法。
We introduce a method to reduce the study of the topology of a simplicial complex to that of a simpler one. Applying this method to complexes arising from graphs, we give topological meaning to classical graph invariants. As a consequence, we answer some questions raised in (Ehrenborg and Hetyei in Eur. J. Comb. 27(6):906–923, 2006) on the independence complex and the dominance complex of a forest and obtain improved algorithms to compute their homotopy types.