29 citations · 119 across the 22 of their papers we have counts for
Showing 2009 · math.FAShow all
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math.FA2009
Unitary equivalence to a complex symmetric matrix: an algorithm
James E. Tener
We present a necessary and sufficient condition for a 3 by 3 matrix to be unitarily equivalent to a symmetric matrix with complex entries, and an algorithm whereby an arbitrary 3 b…
math.FA2009★ 29 cited
Unitary equivalence of a matrix to its transpose
Stephan Ramon Garcia, James E. Tener
Motivated by a problem of Halmos, we obtain a canonical decomposition for complex matrices which are unitarily equivalent to their transpose (UET). Surprisingly, the naive assertio…
math.FA2009★ 1 cited
Projections and idempotents with fixed diagonal and the homotopy problem for unit tight frames
Julien Giol, Leonid V. Kovalev, David Larson +2
We investigate the topological and metric structure of the set of idempotent operators and projections which have prescribed diagonal entries with respect to a fixed orthonormal ba…