The involution-word bumping conjecture for queer supercrystals

Let IZI_\mathbb{Z} denote the set of involutions in the infinite symmetric group, let w=w1w2wnw=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~2w~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~iwi{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.

Sources & referencesView supporting material

Primary source

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

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