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arXiv math/0004021math.GT
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所有二维链都是空同伦的

All two dimensional links are null homotopic

Arthur Bartels, Peter Teichner

摘要:

我们证明了在4-空间中任意数量的不相交嵌入的2-球面可以被链接同伦拉开,也就是说,通过一个运动,2-球面保持不相交,但允许自交。

英文摘要:

We show that any number of disjointly embedded 2-spheres in 4-space can be pulled apart by a link homotopy, ie, by a motion in which the 2-spheres stay disjoint but are allowed to self-intersect.

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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