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- W3186284219 abstract "The Hankel matrix of type B Narayana polynomials was proved to be totally positive by Wang and Zhu, and independently by Sokal. Pan and Zeng raised the problem of giving a planar network proof of this result. In this paper, we present such a proof by constructing a planar network allowing negative weights, applying the Lindström-Gessel-Viennot lemma and establishing an involution on the set of nonintersecting families of directed paths." @default.
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- W3186284219 date "2022-08-01" @default.
- W3186284219 modified "2023-10-06" @default.
- W3186284219 title "A planar network proof for Hankel total positivity of type B Narayana polynomials" @default.
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- W3186284219 doi "https://doi.org/10.1016/j.aam.2022.102374" @default.
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