Pólya's Theorem with zeros

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Let R[X] be the real polynomial ring in n variables. Pólya's Theorem says that if a homogeneous polynomial pεR[X] is positive on the standard n-simplex δn, then for sufficiently large N all the coefficients of (X1+...+Xn)Np are positive. We give a complete characterization of forms, possibly with zeros on δn, for which there exists N so that all coefficients of (X1+...+Xn)Np have only nonnegative coefficients, along with a bound on the N needed. © 2011 Elsevier Ltd.




Castle, M., Powers, V., & Reznick, B. (2011). Pólya’s Theorem with zeros. Journal of Symbolic Computation, 46(9), 1039–1048. https://doi.org/10.1016/j.jsc.2011.05.006

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