Total positivity of Riordan arrays
Combinatorics
2016-01-22 v1
Abstract
We present sufficient conditions for total positivity of Riordan arrays. As applications we show that many well-known combinatorial triangles are totally positive and many famous combinatorial numbers are log-convex in a unified approach.
Keywords
Cite
@article{arxiv.1601.05637,
title = {Total positivity of Riordan arrays},
author = {Xi Chen and Huyile Liang and Yi Wang},
journal= {arXiv preprint arXiv:1601.05637},
year = {2016}
}