Total positivity of Riordan arrays

Research paper by Xi Chen, Huyile Liang, Yi Wang

Indexed on: 21 Jan '16Published on: 21 Jan '16Published in: Mathematics - Combinatorics


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.