Skip to main content
Log in

Some singular value and unitarily invariant norm inequalities for Hilbert space operators

  • Published:
ANNALI DELL'UNIVERSITA' DI FERRARA Aims and scope Submit manuscript

Abstract

In this paper, we prove some singular value inequalities for sum and product of operators. Also, we obtain several generalizations of recent inequalities. Moreover, as applications we establish some unitarily invariant norm and trace inequalities for operators which provide refinements of previous results.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Bhatia, R.: Matrix Analysis, GTM 169. Springer, New York (1997)

    Book  Google Scholar 

  2. Zhan, X.: Matrix Inequalities. Springer, Berlin (2002)

    Book  MATH  Google Scholar 

  3. Dragomir, S.S.: Hermite–Hadamard’s type inequalities for operator convex functions. Appl. Math. Comput. 218, 766–772 (2011)

    MathSciNet  MATH  Google Scholar 

  4. Ghazanfari, A.G.: The Hermite–Hadamard type inequalities for operator s-convex functions. J. Adv. Res. Pure Math. 6(3), 52–61 (2014)

    Article  MathSciNet  Google Scholar 

  5. Uchiyama, M.: Commutativity of self-adjoint operators. Pac. J. Math. 161, 385–392 (1993)

    Article  MATH  Google Scholar 

  6. Nagisa, M., Ueda, M., Wada, S.: Commutativity of operators. Nihonkai Math. J. 17, 1–8 (2006)

    MathSciNet  MATH  Google Scholar 

  7. Bhatia, R., Kittaneh, F.: Notes on matrix arithmetic–geometric mean inequalities. Linear Algebra Appl. 308, 77–84 (2000)

    Article  MathSciNet  MATH  Google Scholar 

  8. Drury, S.W.: On a question of Bhatia and Kittaneh. Linear Algebra Appl. 437, 1955–1960 (2012)

    Article  MathSciNet  MATH  Google Scholar 

  9. Bhatia, R., Kittaneh, F.: On singular values of a product of operators. SIAM J. Matrix Anal. Appl. 11, 271–277 (1990)

    Article  MathSciNet  MATH  Google Scholar 

  10. Hirzallah, O., Kittaneh, F.: Inequalities for sums and direct sums of Hilbert space operators. Linear Algebra Appl. 424, 71–82 (2007)

    Article  MathSciNet  MATH  Google Scholar 

  11. Bhatia, R., Kittaneh, F.: Norm inequalities for positive operators. Lett. Math. Phys. 43, 225–231 (1998)

    Article  MathSciNet  MATH  Google Scholar 

  12. Ando, T., Zhan, X.: Norm inequalities related to operator monotone functions. Math. Ann. 315, 771–780 (1999)

    Article  MathSciNet  MATH  Google Scholar 

  13. Aujla, J.S., Silva, F.C.: Weak majorization inequalities and convex functions. Linear Algebra Appl. 369, 217–233 (2003)

    Article  MathSciNet  MATH  Google Scholar 

  14. Hiai, F., Zhan, X.: Inequalities involving unitarily invariant norms and operator monotone functions. Linear Algebra Appl. 341, 151–169 (2002)

    Article  MathSciNet  MATH  Google Scholar 

  15. Bhatia, R., Kittaneh, F.: The matrix arithmetic-geometric mean inequality revisited. Linear Algebra Appl. 428, 2177–2191 (2008)

    Article  MathSciNet  MATH  Google Scholar 

  16. Simon, B.: Trace Ideals and Their Applications. Cambridge University Press, Cambridge (1979)

    MATH  Google Scholar 

  17. Shebrawi, Kh, Albadawi, H.: Trace inequalities for matrices. Bull. Aust. Math. Soc. 87, 139–148 (2013)

    Article  MathSciNet  MATH  Google Scholar 

  18. Horn, R.A., Johnson, C.R.: Matrix Analysis. Cambridge University Press, Cambridge (2012)

    Book  Google Scholar 

Download references

Acknowledgements

This work was written whilst the second author was visiting Victoria University. He is grateful for the support and hospitality.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to V. Darvish.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Taghavi, A., Darvish, V., Nazari, H.M. et al. Some singular value and unitarily invariant norm inequalities for Hilbert space operators. Ann Univ Ferrara 63, 377–389 (2017). https://doi.org/10.1007/s11565-017-0271-5

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11565-017-0271-5

Keywords

Mathematics Subject Classification

Navigation