Article Dans Une Revue Symmetry, Integrability and Geometry : Methods and Applications Année : 2025

Integrable dynamics in projective geometry via dimers and triple crossing diagram maps on the cylinder

Résumé

We introduce twisted triple crossing diagram maps, collections of points in projective space associated to bipartite graphs on the cylinder, and use them to provide geometric realizations of the cluster integrable systems of Goncharov and Kenyon constructed from toric dimer models. Using this notion, we provide geometric proofs that the pentagram map and the cross-ratio dynamics integrable systems are cluster integrable systems. We show that in appropriate coordinates, cross-ratio dynamics is described by geometric R-matrices, which solves the open question of finding a cluster algebra structure describing cross-ratio dynamics.

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Dates et versions

hal-03364744 , version 1 (04-10-2021)
hal-03364744 , version 2 (27-09-2023)
hal-03364744 , version 3 (23-09-2025)

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Niklas Affolter, Terrence George, Sanjay Ramassamy. Integrable dynamics in projective geometry via dimers and triple crossing diagram maps on the cylinder. Symmetry, Integrability and Geometry : Methods and Applications, 2025, 21 (040), pp.48. ⟨10.3842/SIGMA.2025.040⟩. ⟨hal-03364744v3⟩
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