HL-homotopy of handlebody-links and Milnor's invariants
HL-homotopy of handlebody-links and Milnor's invariants
复制标题
把手体连杆的 HL 同伦和 Milnor 不变量
DOI:
10.1016/j.topol.2017.02.073
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
A. Mizusawa
中科院分区:
文献类型:
--
作者:
Y. Kotorii;A. Mizusawa
A handlebody-link is a disjoint union of embeddings of handlebodies in S 3 and an HL-homotopy is an equivalence relation on handlebody-links generated by self-crossing changes. The second author and Ryo Nikkuni classified the set of HL-homotopy classes of 2-component handlebody-links completely using the linking numbers for handlebody-links. In this paper, we construct a family of invariants for HL-homotopy classes of general handlebody-links, by using Milnor's μ‾-invariants. Moreover, we give a bijection between the set of HL-homotopy classes of almost trivial handlebody-links and tensor product space modulo some general linear actions, especially for 3-or more component handlebody-links. Through this bijection we construct invariants of HL-homotopy classes which can be used to distinguish the classes.
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