Pairs of lattice paths and positive trigonometric sums

Details Pairs of lattice paths and positive trigonometric sums Pairs of lattice paths and positive trigonometric sums

2009-03-30

arxiv.org/abs/0903.5179v3

Constr. Approx. 32 (2010), 67--75

Mathematics

Combinatorics

9 pages, final version

Scientific paper

10.1007/s00365-009-9067-x

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.

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