Hopkins's rowmotion cyclic sieving meta-conjecture

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Let PP be a finite graded poset of rank rr for which the roots of \aΩP(m)\aΩ_P(m) are all integers or half-integers, and in the latter case possessing an order two automorphism. Let m\a0≥1m \a0\geq 1 be an integer and define

ΩP(m;q):=∏α1−qκ(m−α)1−q−κα,\Omega_P(m;q):= \prod_{\alpha} \frac{1-q^{\kappa(m-\alpha)}}{1-q^{-\kappa \alpha}},

a product over all the roots α\alpha of ΩP(m)\Omega_P(m) with multiplicity, and with κ:=1\kappa:= 1 if the roots are integers or κ:=2\kappa:= 2 if they are half-integers. Hopkins's rowmotion cyclic sieving meta-conjecture. Then ΩP(m;q)\Omega_P(m;q) is a polynomial in qq with nonnegative integer coefficients, and

(PPm(P),⟨Row⟩≃Z/κ(r+2)Z,ΩP(m;q))(\mathcal{PP}^m(P),\langle \mathrm{Row} \rangle \simeq \mathbb{Z}/\kappa(r+2)\mathbb{Z},\Omega_P(m;q))

exhibits cyclic sieving. This predicts a uniform cyclic sieving phenomenon for rowmotion on PP-partitions; the paper recalls several proved families and establishes the staircase case, while the general assertion remains open.

References

Primary source

Sam Hopkins, Jesse Kim and Stephan Pfannerer, “Cyclic Sieving for Staircase Plane Partitions via Crystals and Electrical Networks”, arXiv:2607.14028 (2026).

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