Showing papers by "Roger A. Horn published in 1999"

TL;DR: In this article, the Jordan Canonical Forms of complex orthogonal and skew-symmetric matrices were studied and some related results were derived, including the relation between the Jordan canonical forms of complex complex matrices and complex complex OO matrices.

TL;DR: In this article, it was shown that any nontrivial C-S seminorm on M n is a unitarily invariant norm, which is a special case of the inequalities of Bhatia et al.

TL;DR: In this article, it was shown that the moment matrix of order m associated with the n-by-n complex matrix A is Km≡[trAi+j−2]i,j=1m, and there is a unique (d+1)-vector b=[bi−1]i=1μ+1 such that Lμ+ 1b=0 and bμ=1.