Showing papers by "Roger A. Horn published in 1994"
TL;DR: In this article, the authors obtain characterization of linear operators that preserve complex orthogonal equivalence for two complex matrices with orthogonally equivalent matrices, such that the latter is a linear operator.
Abstract: Two complex matrices $A$ and $B$ are said to be (complex) orthogonally equivalent if there exist (complex) orthogonal matrices $Q_1$ and $Q_2$ such that $A = Q_{1}BQ_{2}$. In this note the authors obtain characterization of linear operators that preserve complex orthogonal equivalence.
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