Tropical reflection agrees with evacuation of tableaux

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Let T∈SSYT⁡(k,[n])T\in\operatorname{SSYT}(k,[n]), let θ\theta be the tropical reflection map, let τ\tau be the tropical twist map, let ch⁡(T)\operatorname{ch}(T) be the associated dual canonical basis element, and let eva⁡(T)\operatorname{eva}(T) be tableau evacuation.

Evacuation conjecture. For every T∈SSYT⁡(k,[n])T\in\operatorname{SSYT}(k,[n]),

θ(ch⁡(T))=ch⁡(eva⁡(T)),θ(T)=eva⁡(τ−1(T)).\theta(\operatorname{ch}(T))=\operatorname{ch}(\operatorname{eva}(T)),\qquad \theta(T)=\operatorname{eva}(\tau^{-1}(T)).

The conjecture connects tropical reflection with Schützenberger evacuation, both on dual canonical basis elements and on tableaux. The supplied text gives no resolution status.

References

Primary source

James Drummond, Ömer Gürdoğan and Jian-Rong Li, “Tropical symmetries of cluster algebras”, arXiv:2601.19779 (2026).

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