ArticleOriginal scientific text

Title

On orderings induced by the Loewner partial ordering

Authors 1, 1

Affiliations

  1. Department of Mathematical and Statistical Methods, Agricultural University of Poznań, ul. Wojska Polskiego 28, 60-637 Poznań, Poland

Abstract

The partial ordering induced by the Loewner partial ordering on the convex cone comprising all matrices which multiplied by a given positive definite matrix become nonnegative definite is considered. Its relation to orderings which are induced by the Loewner partial ordering of the squares of matrices is presented. Some extensions of the latter orderings and their comparison to star orderings are given.

Keywords

star ordering, Loewner ordering, spectral radius, matrix norm

Bibliography

  1. J. K. Baksalary, E. P. Liski and G. Trenkler, Mean square error matrix improvements and admissibility of linear estimators, J. Statist. Plann. Inference 23 (1989), 313-325.
  2. J. K. Baksalary and S. K. Mitra, Left-star and right-star partial orderings, Linear Algebra Appl. 149 (1991), 73-89.
  3. J. K. Baksalary, B. Schipp and G. Trenkler, Some further results on Hermi- tian-matrix inequalities, ibid. 160 (1992), 119-129.
  4. P. A. Bekker, The positive semidefiniteness of partitioned matrices, ibid. 111 (1988), 261-278.
  5. A. Ben-Israel and T. N. E. Greville, Generalized Inverses: Theory and Applications, Wiley, New York, 1974.
  6. M. P. Drazin, Natural structures on semigroups with involution, Bull. Amer. Math. Soc. 84 (1978), 139-141.
  7. R. A. Horn and C. R. Johnson, Matrix Analysis, Cambridge University Press, Cambridge, 1985.
  8. S. K. Mitra, The minus partial order and the shorted matrices, Linear Algebra Appl. 83 (1986), 1-27.
  9. C. R. Rao, Estimation of parameters in a linear model, Ann. Statist. 4 (1976), 1023-1036.
  10. C. R. Rao and S. K. Mitra, Generalized Inverse of Matrices and Its Applications, Wiley, New York, 1971.
  11. C. Stępniak, Two orderings on a convex cone of nonnegative definite matrices, Linear Algebra Appl. 94 (1987), 263-272.
Pages:
145-154
Main language of publication
English
Received
1992-05-13
Accepted
1993-09-06
Published
1994
Exact and natural sciences