English

Tableau evacuation and webs

Combinatorics 2024-03-04 v2 Representation Theory

Abstract

Webs are certain planar diagrams embedded in disks. They index and describe bases of tensor products of representations of sl2\mathfrak{sl}_2 and sl3\mathfrak{sl}_3. There are explicit bijections between webs and certain rectangular tableaux. Work of Petersen-Pylyavskyy-Rhoades (2009) and Russell (2013) shows that these bijections relate web rotation to tableau promotion. We describe the analogous relation between web reflection and tableau evacuation.

Cite

@article{arxiv.2109.04989,
  title  = {Tableau evacuation and webs},
  author = {Rebecca Patrias and Oliver Pechenik},
  journal= {arXiv preprint arXiv:2109.04989},
  year   = {2024}
}

Comments

10 pages, exposition improved thanks to helpful feedback

R2 v1 2026-06-24T05:52:01.310Z