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arxiv: 1205.6242 · v2 · pith:EC4XHYRNnew · submitted 2012-05-29 · 🧮 math.CO

Polynomials with only real zeros and the Eulerian polynomials of type D

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keywords polynomialseuleriantypeidentitybrenticonjectureequivalentexplore
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A remarkable identity involving the Eulerian polynomials of type D was obtained by Stembridge (Adv. Math. 106 (1994), p. 280, Lemma 9.1). In this paper we explore an equivalent form of this identity. We prove Brenti's real-rootedness conjecture for the Eulerian polynomials of type $D$.

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