When the roots z_j are in the unit disk ?
From: Alex.Lupas (alexandru.lupas_at_ulbsibiu.ro)
Date: 11/20/04
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Date: 19 Nov 2004 20:32:41 -0800
Suppose f(z)=a_0*z^n+a_1*z^{n-1}+...+a_{n-1}*z +a_n with complex coefficients.
Let z_1,z_2,...,z_n be the roots of f(z)=0.
Find sufficient conditions such that |z_j| < 1 , j=1,2,...,n.
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