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Relationships between partial orders of matrices and their powers

✍ Scribed by Jerzy K Baksalary; Jan Hauke; Xiaoji Liu; Sanyang Liu


Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
190 KB
Volume
379
Category
Article
ISSN
0024-3795

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✦ Synopsis


Baksalary and Pukelsheim [Linear Algebra Appl. 151 (1991)

135] considered the problem of how an order between two Hermitian nonnegative definite matrices A and B is related to the corresponding order between the squares A 2 and B 2 , in the sense of the star partial ordering, the minus partial ordering, and the LΓΆwner partial ordering. In the present paper, possibilities of generalizing and strengthening their results are studied from two points of view: by widening the class of matrices considered and by replacing the squares by arbitrary powers.


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