Super Markoff-number conjecture for the once-punctured torus

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Begin with an oriented triangulation of the once-punctured torus described in the source, and retain ee as a formal variable rather than setting it equal to 11. Iterated flips in all three directions produce all possible arcs in the once-punctured torus. Super Markoff-number conjecture. The super λ\lambda-lengths of these arcs are super analogues of the Markoff numbers and have combinatorial interpretations via double dimer covers of the snake graphs appearing in Section 7 of the cited work, with appropriately specialized μ\mu-invariants. This is proposed as a natural extension of the classical Markoff-number and dimer-cover picture; the source supplies no proof, so its status is open.

References

Primary source

Gregg Musiker, Nicholas Ovenhouse and Sylvester W. Zhang, “Double Dimer Covers on Snake Graphs from Super Cluster Expansions”, arXiv:2110.06497 (2021).

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