Resumen de On the Lorentz degree of a product of polynomials

Rachid Ait-Haddou

• In this note, we negatively answer two questions of T. Erd´elyi (1991, 2010) on possible lower bounds on the Lorentz degree of product of two polynomials. We show that the correctness of one question for degree two polynomials is a direct consequence of a result of Barnard et al. (1991) on polynomials with nonnegative coefficients.