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JOURNAL OF
ALGEBRAIC
COMBINATORICS

  Editors-in-chief: C. A. Athanasiadis, T. Lam, A. Munemasa, H. Van Maldeghem
ISSN 0925-9899 (print) • ISSN 1572-9192 (electronic)
 

A simple bijection between standard 3\times  n tableaux and irreducible webs for \mathfrak sl 3 \mathfrak{sl}_{3}

Julianna Tymoczko

DOI: 10.1007/s10801-011-0317-1

Abstract

Combinatorial spiders are a model for the invariant space of the tensor product of representations. The basic objects, webs, are certain directed planar graphs with boundary; algebraic operations on representations correspond to graph-theoretic operations on webs. Kuperberg developed spiders for rank 2 Lie algebras and \mathfrak sl 2 \mathfrak {sl}_{2}. Building on a result of Kuperberg, Khovanov-Kuperberg found a recursive algorithm giving a bijection between standard Young tableaux of shape 3\times  n and irreducible webs for \mathfrak sl 3 \mathfrak{sl}_{3} whose boundary vertices are all sources.

Pages: 611–632

Keywords: keywords spider; representations of Lie algebras; Young tableau; jeu de taquin; promotion

Full Text: PDF

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