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Why Knots Are Really Hard to Untie

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Was Alexander right to cut open the Gordian Knot? Anyone who’s played with a badly tangled piece of string for long enough will appreciate his solution. In fact, a lot of computations in Knot theory are provably NP-hard. I will talk about the diversity of Knot Theory and the quest to understand combinatorial knot invariants in a geometric way and so to gain knowledge that doesn’t require difficult

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