A Criterion for Unimodality
نویسندگان
چکیده
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.
منابع مشابه
An Extension of a Criterion for Unimodality
We prove that if P (x) is a polynomial with nonnegative nondecreasing coefficients and n is a positive integer, then P (x + n) is unimodal. Applications and open problems are presented.
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ورودعنوان ژورنال:
- Electr. J. Comb.
دوره 6 شماره
صفحات -
تاریخ انتشار 1999