Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5777185 | Electronic Notes in Discrete Mathematics | 2017 | 16 Pages |
Abstract
We give exact formulas for the bivariate generating series of 321-avoiding affine permutations with respect to rank and Coxeter length. We use two different combinatorial approaches, both based on the theory of heaps of pieces.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Discrete Mathematics and Combinatorics
Authors
Riccardo Biagioli, Frédéric Jouhet, Philippe Nadeau,