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
中科院分区:
文献类型:
--
作者:
Hedden, Matthew;Livingston, Charles;Ruberman, Daniel
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.