Product-Coproduct Prographs and Triangulations of the Sphere
Combinatorics
2022-02-14 v1 Discrete Mathematics
Abstract
In this paper, we explain how the classical Catalan families of objects involving paths, tableaux, triangulations, parentheses configurations and more generalize canonically to a three-dimensional version. In particular, we present product-coproduct prographs as central objects explaining the combinatorics of the triangulations of the sphere. Then we expose a natural way to extend the Tamari lattice to the product-coproduct prographs.
Keywords
Cite
@article{arxiv.2202.05757,
title = {Product-Coproduct Prographs and Triangulations of the Sphere},
author = {Nicolas Borie and Justine Falque},
journal= {arXiv preprint arXiv:2202.05757},
year = {2022}
}