Γ-Commuting triples of positive definite matrices and midpoint equations on unitary matrices
Triples of positive definite matrices that can be transformed to a commuting triple by a congruence transformation are called Γ-commuting. In this paper we give various descriptions and characterizations of Γ-commuting triples and particularly focus on those involving the geometric mean and midpoint equations on a generating set of the special unitary group. © 2007 Elsevier Inc. All rights reserved.
Publication Source (Journal or Book title)
Linear Algebra and Its Applications
Lawson, J., & Lim, Y. (2008). Γ-Commuting triples of positive definite matrices and midpoint equations on unitary matrices. Linear Algebra and Its Applications, 428 (8-9), 2030-2039. https://doi.org/10.1016/j.laa.2007.11.005