Inequalities for polynomials satisfying $p(z)\equiv z\sp{n}p(1/z)$

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Some compact generalization of inequalities for polynomials with prescribed zeros

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some compact generalization of inequalities for polynomials with prescribed zeros

‎let $p(z)=z^s h(z)$ where $h(z)$ is a polynomial‎ ‎of degree at most $n-s$ having all its zeros in $|z|geq k$ or in $|z|leq k$‎. ‎in this paper we obtain some new results about the dependence of $|p(rz)|$ on $|p(rz)| $ for $r^2leq rrleq k^2$‎, ‎$k^2 leq rrleq r^2$ and for $rleq r leq k$‎. ‎our results refine and generalize certain well-known polynomial inequalities‎.

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ژورنال

عنوان ژورنال: Proceedings of the American Mathematical Society

سال: 1976

ISSN: 0002-9939

DOI: 10.1090/s0002-9939-1976-0414838-4