Thin-position conjecture for the knots K2,1,3,7K_{2,1,3,7} and K4,1,3,3K_{4,1,3,3}

From papers

Let BiB_i be the braids occurring in the paper's construction, and let K2,1,3,7K_{2,1,3,7} and K4,1,3,3K_{4,1,3,3} denote the corresponding knots. A thin position is an embedding realizing minimum width; minimum trunk and bridge number are defined analogously. Thin-position conjecture. For sufficiently complicated braids BiB_i, thin position of K2,1,3,7K_{2,1,3,7} does not realize minimum trunk or minimum bridge number, while thin position of K4,1,3,3K_{4,1,3,3} realizes minimum bridge number but not minimum trunk. These claims arise from embeddings whose thinness cannot currently be verified for the stated examples, so they remain conjectural.

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Sources & referencesView supporting material

Primary source

Derek Davies and Alexander Zupan, “Natural properties of the trunk of a knot”, arXiv:1608.00019 (2016).

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