%0 Journal Article
%T Unitary equivalence to a complex symmetric matrix: geometric criteria
%A Stephan Ramon Garcia
%A Levon Balayan
%J Mathematics
%D 2009
%I arXiv
%X We develop several methods, based on the geometric relationship between the eigenspaces of a matrix and its adjoint, for determining whether a square matrix having distinct eigenvalues is unitarily equivalent to a complex symmetric matrix. Equivalently, we characterize those matrices having distinct eigenvalues which lie in the unitary orbit of the complex symmetric matrices.
%U http://arxiv.org/abs/0907.2728v2