The dimer model realization conjecture for Laurent polynomials

From papers

Let Δ\Delta be a lattice polygon containing the origin in its interior. Choose a Laurent polynomial WW whose Newton polygon coincides with Δ\Delta, together with a distinguished basis of vanishing cycles on W1(0)W^{-1}(0). For the argument map

Arg:(C×)2R2/Z2(x,y)12π(argx,argy),\begin{array}{cccc} \operatorname{Arg}: & (\mathbb{C}^{\times})^2 & \to & \mathbb{R}^2 / \mathbb{Z}^2 \\ & \downarrow & & \downarrow \\ & (x,y) & \mapsto & \dfrac{1}{2\pi}(\arg x,\arg y), \end{array}

Dimer model realization conjecture. For a suitable choice of WW and distinguished basis, there is a bicolored graph YY on W1(0)W^{-1}(0) such that an edge of YY corresponds to an intersection of vanishing cycles, a node of YY corresponds to a holomorphic disk bounded by vanishing cycles, the color of a node corresponds to the sign of the associated AA_\infty-operation, and the image of YY under the argument map is a consistent dimer model GG. The order on the distinguished basis gives a perfect matching DD, and the characteristic polygon of (G,D)(G,D) coincides with Δ\Delta.

This conjecture predicts a direct geometric realization of consistent dimer models and perfect matchings from the vanishing-cycle data of a Laurent polynomial. It is motivated by the proposed relationship between dimer models and mirror symmetry; the supplied source does not state whether the conjecture is open or resolved.

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Sources & referencesView supporting material

Primary source

Masahiro Futaki and Kazushi Ueda, “Dimer models and homological mirror symmetry for triangles”, arXiv:1004.3620 (2010).

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