Grid-move conjecture for minimal grid diagrams of (p,2)(p,2) torus knots

Let Tp,2T_{p,2} be a torus knot, let KLK_L be a Legendrian knot of topological type Tp,2T_{p,2}, and let α(Tp,2)\alpha(T_{p,2}) denote the grid number of Tp,2T_{p,2}. Consider a grid diagram for KLK_L of size α(Tp,2)\alpha(T_{p,2}). Grid-move conjecture. There is a sequence of commutation and cyclic permutation moves taking KLK_L to the standard grid diagram representing it. The conjecture has been verified by a computer program up to p=7p=7; commutation and cyclic permutation are standard moves on grid diagrams, with commutation allowed for adjacent non-interleaved rows or columns.

Sources & referencesView supporting material

Primary source

Ben McCarty, “Cube number can detect chirality and Legendrian type of knots”, arXiv:1006.4852 (2010).

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