The involution-word bumping conjecture for queer supercrystals

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Let IZI_\mathbb{Z} denote the set of involutions in the infinite symmetric group, let w=w1w2⋯wnw=w_1w_2\cdots w_n be an involution word, and let ibπ\mathfrak{ib}_\pi be the involution-word bumping operator. Suppose

ibπ(w)=w~1w~2⋯w~n.\mathfrak{ib}_\pi(w)=\tilde w_1\tilde w_2\cdots\tilde w_n.

Involution-word bumping conjecture. For every i∈[n]i\in[n], one has w~i−wi∈{0,1}\tilde w_i-w_i\in\{0,1\}.

Computations support this analogue of the corresponding result for Edelman–Greene insertion; if true, it would immediately prove the most difficult part of the stated theorem on the orthogonal insertion algorithm. The conjecture is presented as open in the source.

References

Primary source

Eric Marberg, “Bumping operators and insertion algorithms for queer supercrystals”, arXiv:1910.02261 (2021).

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