Champanerkar–Kofman–Lalín's bipyramid volume conjecture for periodic alternating links

Let L\mathcal{L} be a Z2\mathbb{Z}^2-periodic alternating link, with toroidally alternating quotient link LL. Let P(z,w)P(z,w) be the characteristic polynomial of the toroidal dimer model constructed from the associated periodic bipartite graph. The Champanerkar–Kofman–Lalín conjecture.

2πM(P(z,w))vol(L).2\pi M(P(z,w)) \geq \operatorname{vol}^{\lozenge}(L).

Here M(P(z,w))M(P(z,w)) is the Mahler measure of P(z,w)P(z,w), and vol(L)\operatorname{vol}^{\lozenge}(L) is the sum of the volumes of the regular ideal bipyramids associated with the faces of LL. The conjecture compares the dimer-model Mahler measure with the bipyramid volume of the quotient link and was proposed for Z2\mathbb{Z}^2-periodic alternating links; its resolution is not specified in the source.

Sources & referencesView supporting material

Primary source

Hong-Chuan Gan, “Bipyramid Volume, Mahler Measure and Some Z^2-periodic Links”, arXiv:2202.10218 (2022).

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