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arXiv 0908.3109math.GTmath.AT
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图浸入平面的吴不变量

On the Wu invariants for immersions of a graph into the plane

Ryo Nikkuni

摘要:

我们给出了有限图浸入平面的吴不变量的一个显式计算,并通过吴不变量将图浸入平面的所有一般浸入分类为正则同伦。这个结果是两条平面曲线正则同伦当且仅当它们具有相同的旋转数的推广。

英文摘要:

We give an explicit calculation of the Wu invariants for immersions of a finite graph into the plane and classify all generic immersions of a graph into the plane up to regular homotopy by the Wu invariant. This result is a generalization of the fact that two plane curves are regularly homotopic if and only if they have the same rotation number.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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