The converse from completely uniquely paired to semidistrim lattices

Let LL be a lattice. It is completely uniquely paired if there is a unique bijection λ:LL\lambda:L\to L such that, for every xLx\in L, λ(x)\lambda(x) is maximal among the elements zLz\in L satisfying PopL(x)=xz\mathsf{Pop}^{\downarrow}_L(x)=x\wedge z, and λ1(x)\lambda^{-1}(x) is minimal among the elements zLz\in L satisfying PopL(x)=xz\mathsf{Pop}^{\uparrow}_L(x)=x\vee z. A lattice is semidistrim when it has the semidistrim property defined in the paper. The semidistrim pairing conjecture. Every semidistrim lattice is completely uniquely paired. This would show that the pairing structure known for semidistrim lattices extends to a unique global bijection, called rowmotion in this setting.

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Primary source

Colin Defant and Nathan Williams, “Semidistrim Lattices”, arXiv:2111.08122 (2021).

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