Topologically slice knots with nontrivial Alexander polynomial

Topologically slice knots with nontrivial Alexander polynomial
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使用非平凡亚历山大多项式对结进行拓扑切片

DOI:
10.1016/j.aim.2012.05.019
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发表时间:
2012
影响因子:
1.7
通讯作者:
Ruberman, Daniel
Ruberman, Daniel
中科院分区:
数学1区
文献类型:
--
作者:
Hedden, Matthew;Livingston, Charles;Ruberman, Daniel

文献摘要

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设CT为拓扑切片纽结生成的光滑纽结和谐群的子群,CΔ为平凡亚历山大多项式纽结生成的子群.我们证明了CT/CΔ是无限生成的。我们的方法揭示了一个类似的结构,在3维合理的自旋bordism组,并导致建设的链接是拓扑的,但不顺利,和谐的边界链接。
Let CTbe the subgroup of the smooth knot concordance group generated by topologically slice knots and let CΔbe the subgroup generated by knots with trivial Alexander polynomial. We prove that CT/CΔis infinitely generated. Our methods reveal a similar structure in the 3-dimensional rational spin bordism group, and lead to the construction of links that are topologically, but not smoothly, concordant to boundary links.