TWO INEQUALITIES INVOLVING HADAMARD PRODUCTS OF POSITIVE SEMI-DEFINITE HERMITIAN MATRICES

  • Published : 2002.09.01

Abstract

We extend two inequalities involving Hadamard Products of Positive definite Hermitian matrices to positive semi-definite Hermitian matrices. Simultaneously, we also show the sufficient conditions for equalities to hold. Moreover, some other matrix inequalities are also obtained. Our results and methods we different from those which are obtained by S. Liu in [J. Math. Anal. Appl. 243:458-463(2000)] and B.-Y Wang et al in [Lin. Alg. Appl. 302-303: 163-172(1999)] .

Keywords

References

  1. Linear Multinear Algebra v.43 Schur complements and matrix inequalities of Hadamard products Bo-ying Wang;Fu-zhen Zhang
  2. Lin. Alg. Appl. v.302-303 Some inequalities on generalized Schur complements Bo-ying Wang;Xiu-ping Zhang;Fu-zhen Zhang
  3. Korean J. Comput. Appl. Math. v.8 no.2 On some inequalities for the expectation and variance Cerone P.;Dragomir S. S.
  4. Matrix analysis Horn R. A.;Johnson C. R.
  5. Econometic Theory v.11 An equivalence relation for two symmetric idempotent matrices Liu S.;Folasek W.
  6. J. Math. Anal. Appl. v.243 Inequalities involving Hadamard products of positive semidefinite matrices Liu S.
  7. SIAM J. Matrix Anal. Appl. v.19 no.1 Inequalities for the Hadamard product of matrix Mond B.;Pecaric J. E.
  8. Advances in Mathematics v.27 no.5 Inequalities involving Hadamard products and unitarily invariant norms Xing-zhi Zhan
  9. Lin. Alg. Appl. v.304 A quantitative version of the observation that the Hadamard product is a principal submatrix of the Kronecker product Visick G.
  10. Korean J. Comput. Appl. Math. v.9 no.1 Inequalities involving Khatri-Raoproducts of Hermitian matrices Zhong-peng Yang;Xian Zhang;Chong-guang Cao