Pairs of lattice paths and positive trigonometric sums
Combinatorics
2011-03-25 v3
Abstract
Ismail et al. (Constr. Approx. {\bf 15} (1999) 69--81) proved the positivity of some trigonometric polynomials with single binomial coefficients. In this paper, we prove some similar results by replacing the binomial coefficients with products of two binomial coefficients.
Cite
@article{arxiv.0903.5179,
title = {Pairs of lattice paths and positive trigonometric sums},
author = {Victor J. W. Guo and Jiang Zeng},
journal= {arXiv preprint arXiv:0903.5179},
year = {2011}
}
Comments
9 pages, final version