Enumerating triangulations by parallel diagonals
Combinatorics
2012-08-21 v1
Abstract
The triangulations of a regular convex polygon are enumerated according to the number of diagonals parallel to a fixed edge. The enumeration uses the Shapiro convolution identity, as well as an interpretation of this identity in terms of triangulations.
Cite
@article{arxiv.1208.3915,
title = {Enumerating triangulations by parallel diagonals},
author = {Alon Regev},
journal= {arXiv preprint arXiv:1208.3915},
year = {2012}
}
Comments
5 figures