Invariants of contact structures from open books

Invariants of contact structures from open books
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打开书籍中接触结构的不变量

DOI:
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发表时间:
2006
期刊:
影响因子:
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通讯作者:
B. Ozbagci
B. Ozbagci
中科院分区:
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文献类型:
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作者:
John B. Etnyre;B. Ozbagci

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在这篇注记中,我们根据支持接触结构的开卷定义了接触结构的三个不变量。这些不变量是支持亏格(它是用于接触结构的支持开卷的一页的最小亏格)、装订数(它是具有最小亏格的接触结构的支持开卷的装订组件的最小数目)和范数(它减去支持开卷的一页的最大欧拉特征)。
In this note we define three invariants of contact structures in terms of open books supporting the contact structures. These invariants are the support genus (which is the minimal genus of a page of a supporting open book for the contact structure), the binding number (which is the minimal number of binding components of a supporting open book for the contact structure with minimal genus pages) and the norm (which is minus the maximal Euler characteristic of a page of a supporting open book).