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A note on 0-bipolar knots of concordance order two. (arXiv:1712.09622v1 [math.GT])
来源于:arXiv
Let $\mathcal{T}$ be the group of smooth concordance classes of topologically
slice knots, and $\{0\}\subset\cdots\subset
\mathcal{T}_{n+1}\subset\mathcal{T}_{n}\subset \cdots\subset
\mathcal{T}_{0}\subset \mathcal{T}$ be the bipolar filtration. In this paper,
we show that a proper collection of the knots employed by Hedden, Kim, and
Livingston to prove $\mathbb{Z}_2^{\infty} < \mathcal{T}$ can be used to see
$\mathbb{Z}_2^{\infty} < \mathcal{T}_0/\mathcal{T}_1$. 查看全文>>