Puzzles, Tableaux and Mosaics
Combinatorics
2007-05-23 v1
Abstract
We define mosaics, which are naturally in bijection with Knutson-Tao puzzles. We define an operation on mosaics, which shows they are also in bijection with Littlewood-Richardson skew-tableaux. Another consequence of this construction is that we obtain bijective proofs of commutativity and associativity for the ring structures defined either of these objects. In particular, we obtain a new, easy proof of the Littlewood-Richardson rule. Finally we discuss how our operation is related to other known constructions, particularly jeu de taquin.
Cite
@article{arxiv.0705.1184,
title = {Puzzles, Tableaux and Mosaics},
author = {Kevin Purbhoo},
journal= {arXiv preprint arXiv:0705.1184},
year = {2007}
}