A simplified presentation of Specht modules
Combinatorics
2022-01-07 v3 Representation Theory
Abstract
Fulton and Kraskiewicz gave a presentation of Specht modules as a quotient of the space of column tabloids by dual Garnir relations. We simplify this presentation by showing that it can be generated by a single relation for each pair of columns of a tableau with ordered columns, thereby significantly reducing the number of generators given in the original construction. Our presentation applies to all Specht modules, and is of a similar nature to a recent result by Friedmann-Hanlon-Stanley-Wachs that applies to staircase partitions. We show that our presentation implies the Friedmann-Hanlon-Stanley-Wachs presentation.
Cite
@article{arxiv.1803.10918,
title = {A simplified presentation of Specht modules},
author = {Sarah Brauner and Tamar Friedmann},
journal= {arXiv preprint arXiv:1803.10918},
year = {2022}
}
Comments
Final version appearing in the Journal of Pure and Applied Algebra