2020
DOI: 10.1142/s1793042120400187
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Log-concavity results for a biparametric and an elliptic extension of the q-binomial coefficients

Abstract: We establish discrete and continuous log-concavity results for a biparametric extension of the [Formula: see text]-numbers and of the [Formula: see text]-binomial coefficients. By using classical results for the Jacobi theta function we are able to lift some of our log-concavity results to the elliptic setting. One of our main ingredients is a putatively new lemma involving a multiplicative analogue of Turán’s inequality.

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