Type: Article
Publication Date: 1991-12-01
Citations: 13
DOI: https://doi.org/10.4153/cjm-1992-001-6
Let { P i } be a sequence of real (Laurent) polynomials each of which has no negative coefficients, and suppose that f is a real polynomial. Consider the problem of deciding whether for all integers k , there exists N such that the product of polynomials (*) P k+1 . P k+2 .....P k+N ·ƒ has no negative coefficients.