Young tableau descriptions for the polyhedral realizations of crystal bases in type $A_n$
Representation Theory
2026-05-12 v1 Combinatorics
Abstract
By utilizing the combinatorial properties of various tableau models, we establish an explicit correspondence between the polyhedral realizations of the crystal bases (resp. ) of type and the reverse semi-standard Young tableaux (resp. reverse marginally large tableaux), thereby providing a combinatorial description of the corresponding polyhedral realizations. Furthermore, a crystal structure on the set of Gelfand-Tsetlin patterns is obtained via the correspondence between the polyhedral realization of and the reverse tableaux. As applications of our framework, we present concrete combinatorial realizations of the crystal embedding of into and the set of Lusztig data.
Cite
@article{arxiv.2605.08602,
title = {Young tableau descriptions for the polyhedral realizations of crystal bases in type $A_n$},
author = {Shaolong Han},
journal= {arXiv preprint arXiv:2605.08602},
year = {2026}
}