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 \(\mathfrak {sl}_{2}\). Building on a result of Kuperberg, Khovanov–Kuperberg found a recursive algorithm giving a bijection between standard Young tableaux of shape 3×n and irreducible webs for \(\mathfrak{sl}_{3}\) whose boundary vertices are all sources.
In this paper, we give a simple and explicit map from standard Young tableaux of shape 3×n to irreducible webs for \(\mathfrak {sl}_{3}\) whose boundary vertices are all sources and show that it is the same as Khovanov–Kuperberg’s map. Our construction generalizes to some webs with both sources and sinks on the boundary. Moreover, it allows us to extend the correspondence between webs and tableaux in two ways. First, we provide a short, geometric proof of Petersen–Pylyavskyy–Rhoades’s recent result that rotation of webs corresponds to jeu-de-taquin promotion on 3×n tableaux. Second, we define another natural operation on tableaux called a shuffle and show that it corresponds to the join of two webs. Our main tool is an intermediary object between tableaux and webs that we call an m-diagram. The construction of m-diagrams, like many of our results, applies to shapes of tableaux other than 3×n.
Article PDF
Similar content being viewed by others
References
Fulton, W.: Young Tableaux. Cambridge UP, New York (1997)
Fung, F.: On the topology of components of some Springer fibers and their relation to Kazhdan–Lusztig theory. Adv. Math. 178(2), 244–276 (2003)
Jeong, M.-J., Kim, D.: Quantum \(\mathfrak{sl}(n,\mathbb{C})\) link invariants. arXiv:math.GT/0506403
Khovanov, M., Kuperberg, G.: Web bases for sl(3) are not dual canonical. Pac. J. Math. 188, 129–153 (1999)
Kim, D.: Graphical calculus on representations of quantum Lie algebras. PhD thesis, UC Davis (2003). Available at arXiv:math.QA/0310143
Kuperberg, G.: Spiders for rank 2 Lie algebras. Commun. Math. Phys. 180(1), 109–151 (1996)
Morrison, S.: A diagrammatic category for the representation theory of \(U_{q}(\mathfrak{sl}_{n})\). PhD thesis, UC Berkeley (2007). Available at arXiv:0704.1503
Petersen, K., Pylyavskyy, P., Rhoades, B.: Promotion and cyclic sieving via webs. J. Algebr. Comb. 30, 19–41 (2009)
Petersen, K., Pylyavskyy, P., Speyer, D.: A non-crossing standard monomial theory. J. Algebra 324, 951–969 (2010)
Russell, H., Tymoczko, J.: Springer representations on the Khovanov Springer varieties. Math. Proc. Camb. Philos. Soc. 151, 59–81 (2011)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Tymoczko, J. A simple bijection between standard 3×n tableaux and irreducible webs for \(\mathfrak{sl}_{3}\) . J Algebr Comb 35, 611–632 (2012). https://doi.org/10.1007/s10801-011-0317-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10801-011-0317-1