Huyile Liang

activity

20152023

most citedTotal positivity of Riordan arrays

66 citations · 160 across the 6 of their papers we have counts for

collaborators

Showing 2016Show all

2 papers · 1 filter

math.CO2016★ 54 cited

Total positivity of recursive matrices

Xi Chen, Huyile Liang, Yi Wang

Let $A = [a_{n, k}]_{n, k \geq 0}$ be an infinite lower triangular matrix defined by the recurrence $a_{0, 0} = 1, a_{n + 1, k} = r_{k} a_{n, k - 1} + s_{k} a_{n, k} + t_{k + 1} a_{n, k + 1},$ where $a_{…

math.CO2016★ 66 cited

Total positivity of Riordan arrays

Xi Chen, Huyile Liang, Yi Wang

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 c…