通过Alexander多项式对纽结进行变形旋转的障碍
An obstruction to a knot being deform-spun via Alexander polynomials
摘要：
我们表明，如果一个co-dimension 2结是从一个低维co-dimension 2结变形旋转，有亚历山大多项式的约束。特别地，这表明，对于所有的n，不是所有的S^n中的余维2的纽结都是从S^{n-1}中的纽结变形旋转的。
英文摘要：
We show that if a co-dimension two knot is deform-spun from a lower-dimensional co-dimension 2 knot, there are constraints on the Alexander polynomials. In particular this shows, for all n, that not all co-dimension 2 knots in S^n are deform-spun from knots in S^{n-1}.
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