@article{Boros1999ACF,
title={A Criterion for Unimodality},
author={George Boros and Victor H. Moll},
journal={Electr. J. Comb.},
year={1999},
volume={6}
}

We show that if P (x) is a polynomial with nondecreasing, nonnegative coefficients, then the coefficient sequence of P (x+ 1) is unimodal. Applications are given.Â