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math.CA2020
On the existence of Hurwitz polynomials with no Hadamard factorization
Stanisław Białas, Michał Góra
A Hurwitz stable polynomial of degree has a Hadamard factorization if it is a Hadamard product (i.e. element-wise multiplication) of two Hurwitz stable polynomials of degr…
math.CA2019
A few results concerning the Schur stability of the Hadamard powers and the Hadamard products of complex polynomials
Michał Góra
For a complex polynomial \[ f\left( s\right) =s^{n}+a_{n-1}s^{n-1}+\ldots+a_{1}s+a_{0}% \] and for a rational number , we consider the Schur stability problem of the -th Hada…