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arXiv · 0908.4009

Unsolvable problems about higher-dimensional knots and related groups

F. Gonzalez-Acuna·C. McA. Gordon·J. Simon
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Abstract

We consider classes of fundamental groups of complements of various kinds of codimension 2 embeddings and show that, in general, the problem of deciding whether or not a group in one class belongs to a smaller class is algorithmically unsolvable.

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F. Gonzalez-Acuna, C. McA. Gordon, J. Simon. 2009-08-27. Unsolvable problems about higher-dimensional knots and related groups. https://arxiv.org/abs/0908.4009

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