$\mathfrak{q}$-crystal structure on primed tableaux and on signed unimodal factorizations of reduced words of type $B$

TL;DR

This paper investigates the $rak{q}$-crystal structures on primed tableaux and signed unimodal factorizations of reduced words of type B, providing explicit operators and algorithms for these structures.

Contribution

It introduces explicit odd Kashiwara operators and algorithms for primed tableaux and signed unimodal factorizations in type B, extending crystal basis theory for queer Lie superalgebras.

Findings

Explicit odd Kashiwara operators on primed tableaux.

Algorithms for odd Kashiwara operators on signed unimodal factorizations.

Characterization of highest and lowest weight vectors.

Abstract

Crystal basis theory for the queer Lie superalgebra was developed by Grantcharov et al. and it was shown that semistandard decomposition tableaux admit the structure of crystals for the queer Lie superalgebra or simply $\mathfrak{q}$-crystal structure. In this paper, we explore the $\mathfrak{q}$-crystal structure of primed tableaux (semistandard marked shifted tableaux) and that of signed unimodal factorizations of reduced words of type $B$. We give the explicit odd Kashiwara operators on primed tableaux and the forms of the highest and lowest weight vectors. We also give the explicit algorithms for odd Kashiwara operators on signed unimodal factorizations of reduced words of type $B$.