

Author: Garloff J. Wagner D.G.
Publisher: Academic Press
ISSN: 0022-247X
Source: Journal of Mathematical Analysis and Applications, Vol.202, Iss.3, 1996-09, pp. : 797-809
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Abstract
A real polynomial is (asymptotically) stable when all of its zeros lie in the open left half of the complex plane. We show that the Hadamard (coefficient-wise) product of two stable polynomials is again stable, improving upon some known results. Via the associated Hurwitz matrices we find another example of a class of totally nonnegative matrices which is closed under Hadamard multiplication.
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