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Paper detail

The round handle problem

We present the Round Handle Problem, proposed by Freedman and Krushkal. It asks whether a collection of links, which contains the Generalised Borromean Rings, are slice in a 4-manifold R constructed from adding round handles to the four ball. A negative answer would contradict the union of the surgery conjecture and the s-cobordism conjecture for 4-manifolds with free fundamental group.

preprint2020arXivOpen access
Min Hoon KimMark PowellPeter Teichner
math.GT
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Min Hoon KimMark PowellPeter Teichner

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