High-distance neighbors conjecture for bridge splittings

Let KK be a knot in a 3-manifold MM with a (g,b)(g,b)-splitting, where g1g\geq 1. Let (g,b,n)(g',b',n) be a triple of non-negative integers with ggg'\geq g and bbb'\geq b. High-distance neighbors conjecture. There is a knot KMK'\subset M obtained from KK by a single crossing change such that KK' has a (g,b)(g',b')-splitting of distance at least nn. This would extend the paper's result from genus-zero bridge splittings with b3b\geq 3 to higher-genus bridge splittings; the cases with b2b\leq 2 present the main technical difficulty.

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Primary source

Ryan Blair, Marion Campisi, Jesse Johnson, Scott A. Taylor and Maggy Tomova, “Neighbors of knots in the Gordian graph”, arXiv:1505.00201 (2016).

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