A braid group action on parking functions
Representation Theory
2013-09-23 v2 Combinatorics
Abstract
We construct an action of the braid group on strands on the set of parking functions of cars such that elementary braids have orbits of length 2 or 3. The construction is motivated by a theorem of Lyashko and Looijenga stating that the number of the distinguished bases for singularity equals and thus equals the number of parking functions. We construct an explicit bijection between the set of parking functions and the set of distinguished bases, which allows us to translate the braid group action on distinguished bases in terms of parking functions.
Keywords
Cite
@article{arxiv.1112.0381,
title = {A braid group action on parking functions},
author = {Evgeny Gorsky and Mikhail Gorsky},
journal= {arXiv preprint arXiv:1112.0381},
year = {2013}
}
Comments
18 pages, v2: the focus of the paper shifted towards the braid group action on parking functions; as a result, title and abstract were updated, and text was edited significantly