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A Note on the Concordance Invariant Epsilon
Quarterly Journal of Mathematics ( IF 0.7 ) Pub Date : 2021-06-30 , DOI: 10.1093/qmath/haab033
Shida Wang 1
Affiliation  

We compare the smooth concordance invariants Upsilon, phi and epsilon. Previous work gave examples of knots with one of the Upsilon and phi invariants zero but the epsilon invariant nonzero. We build an infinite family of linearly independent knots with both the Upsilon and phi invariants zero but the epsilon invariant nonzero. This provides examples of knots with arbitrarily large concordance genus but vanishing bounds from the Upsilon and phi invariants.

中文翻译:

关于一致性不变量 Epsilon 的注释

我们比较了平滑一致性不变量 Upsilon、phi 和 epsilon。以前的工作给出了 Upsilon 和 phi 不变量之一为零但 epsilon 不变量非零的结的示例。我们构建了一个无限系列的线性独立结,其中 Upsilon 和 phi 不变量均为零,但 epsilon 不变量非零。这提供了具有任意大一致性属但从 Upsilon 和 phi 不变量中消失的结的示例。
更新日期:2021-06-30
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