首页|Yet another criterion for the total positivity of Riordan arrays
Yet another criterion for the total positivity of Riordan arrays
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NSTL
Elsevier
Let R= R(d(t), h(t)) be a Riordan array, where d(t) = Sigma(dn)(n >= 0)t(n) and h(t) = Sigma(n >= 0)h(n)t(n). We show that if the matrix [d(0) h(0) 0 0 ... d(1) h(1) h(0) 0 d(2) h(2) h(1) h(0) . . .. is totally positive, then so is the Riordan array R. (C) 2021 Elsevier Inc. All rights reserved.
Riordan arrayTotally positive matrixPolya frequency sequence
NSTL
Elsevier
