Topology, Geometry, and Dynamics

Topology, Geometry, and Dynamics
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拓扑、几何和动力学

DOI:
10.1090/conm/772/15483
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发表时间:
2021
期刊:
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通讯作者:
Degtyarev A
Degtyarev A
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文献类型:
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作者:
Degtyarev A

文献摘要

相似文献

我们提出了一个新的不变量,称为斜率,在一个积分同调球的有色链接,并使用此不变量完成的两个链接的拼接签名公式。我们开发了一些方法来计算斜率和一些消失的结果。此外,我们还讨论了斜率的协调不变性,一方面建立了它与Conway多项式的密切关系,另一方面建立了它与Kojima-Yamasaki n-函数(在单变量情况下)和Cochran不变量的密切关系.
We present a new invariant, called slope, of a colored link in an integral homology sphere and use this invariant to complete the signature formula for the splice of two links. We develop a number of ways of computing the slope and a few vanishing results. Besides, we discuss the concordance invariance of the slope and establish its close relation to the Conway polynomials, on the one hand, and to the Kojima-Yamasaki n-function (in the univariate case) and Cochran invariants, on the other hand.