A local evacuation-shuffling algorithm for arbitrary skew tableaux

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Let TT be any (semi)standard skew tableau and let \scalebox.5\young(x)\scalebox{.5}{\young(x)} be an inner co-corner of TT. Write esh⁡\operatorname{esh} for evacuation-shuffling, rect⁡\operatorname{rect} for rectification, and local-esh⁡\operatorname{local\text{-}esh} for the local evacuation-shuffling algorithm on ballot tableaux. Local evacuation-shuffling conjecture. There exists a local algorithm for computing esh⁡(\scalebox.5\young(x),T)\operatorname{esh}(\scalebox{.5}{\young(x)},T) without rectifying TT such that each step exchanges \scalebox.5\young(x)\scalebox{.5}{\young(x)} with an entry of TT of weakly increasing value, preserves the Knuth equivalence class of the word of TT with \scalebox.5\young(x)\scalebox{.5}{\young(x)} omitted, and specializes to jeu de taquin when TT has straight shape and to local-esh⁡\operatorname{local\text{-}esh} when TT is ballot. Each step should correspond, under conjugation by rectification, to a jeu de taquin slide of \scalebox.5\young(x)\scalebox{.5}{\young(x)} through rect⁡(\scalebox.5\young(x),T)\operatorname{rect}(\scalebox{.5}{\young(x)},T).

References

Primary source

Maria Monks Gillespie and Jake Levinson, “Monodromy and K-theory of Schubert Curves via Generalized Jeu de Taquin”, arXiv:1512.06259 (2015).

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