DOI QR코드

DOI QR Code

STUDY OF YOUNG INEQUALITIES FOR MATRICES

  • M. AL-HAWARI (Department of Mathematics, Faculty of Science, Ajloun National University) ;
  • W. GHARAIBEH (Freelance Researcher not affiliated with any specific institution)
  • 투고 : 2022.08.10
  • 심사 : 2023.08.21
  • 발행 : 2023.11.30

초록

This paper investigates Young inequalities for matrices, a problem closely linked to operator theory, mathematical physics, and the arithmetic-geometric mean inequality. By obtaining new inequalities for unitarily invariant norms, we aim to derive a fresh Young inequality specifically designed for matrices.To lay the foundation for our study, we provide an overview of basic notation related to matrices. Additionally, we review previous advancements made by researchers in the field, focusing on Young improvements.Building upon this existing knowledge, we present several new enhancements of the classical Young inequality for nonnegative real numbers. Furthermore, we establish a matrix version of these improvements, tailored to the specific characteristics of matrices. Through our research, we contribute to a deeper understanding of Young inequalities in the context of matrices.

키워드

과제정보

We would like to express our heartfelt appreciation to all those who supported and encouraged us throughout this research. Your help has been highly valuable, and it greatly contributed to the success of our work.

참고문헌

  1. T. Ando, Matrix Young inequality, Oper. Theory Adv. Appl. 75 (1995), 33-38.
  2. Mohammad Al-Hawari, New Estimate for the Numerical Radius of a Given Matrix, and Bounds for the Zeros of Polynomials, Editorial Advisory Boarde 16 (2005), 90-95.
  3. Mohammad Al-Hawari, and Farah M. AL-Askar, Some extension and generalization of the bounds for the zeros of a polynomial with restricted coefficients, International Journal of Pure and Applied Mathematics 89 (2013), 559-564.
  4. Mohammad Al-Hawari, The Generalization of the Arithmetic Geometric Mean Type Inequalities, JP Journal of Geometry and Topology 2020
  5. Mohammad Al-Hawari, The ratios between the numerical radius and the spectral radius of a matrix and the square root of the spectral norm of the square of this matrix, International Journal of Pure and Applied Mathematics 82 (2013), 125-131.
  6. Al-Manasrah, Yousef, and Fuad Kittaneh, A generalization of two refined Young inequalities, Positivity 19 (2015), 757-768. https://doi.org/10.1007/s11117-015-0326-8
  7. Al-Manasrah, Yousef, and Fuad Kittaneh, Further generalizations, refinements, and reverses of the Young and Heinz inequalities, Results in Mathematics 71 (2017), 1063-1072. https://doi.org/10.1007/s00025-016-0611-2
  8. Bhatia, Rajendra, and Rajesh Sharma, Some inequalities for positive linear maps, Linear algebra and its applications 436 (2012), 1562-1571. https://doi.org/10.1016/j.laa.2010.09.038
  9. Hirzallah, Omar, and Fuad Kittaneh, Matrix Young inequalities for the Hilbert-Schmidt norm, Linear algebra and its applications 308 (2000), 77-84. https://doi.org/10.1016/S0024-3795(99)00270-0
  10. Horn, A. Roger, and Charles R. Johnson, Matrix analysis, Cambridge University Press, 1985.
  11. M.A. Ighachane, and M. Akkouchi, A new generalization of two refined Young inequalities and applications, Moroccan Journal of Pure and Applied Analysis 6 (2020), 155-167. https://doi.org/10.2478/mjpaa-2020-0012
  12. Kittaneh, Fuad, and Yousef Manasrah, Improved Young and Heinz inequalities for matrices, Journal of Mathematical Analysis and Applications 361 (2010), 262-269. https://doi.org/10.1016/j.jmaa.2009.08.059
  13. M. Al-Hawari, A. Bani Nasser, R. Hatamleh, New Inequalities Connected With Traces of Matrices, Journal of Applied Mathematics and Informatics 40 (2022), 979-982. https://doi.org/10.14317/JAMI.2022.979
  14. William Henry Young, On classes of summable functions and their Fourier series, Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character 87.594 (1912), 225-229. https://doi.org/10.1098/rspa.1912.0076
  15. Yang, Xiaojing, A matrix trace inequality, Journal of Mathematical Analysis and Applications 250 (2000), 372-374. https://doi.org/10.1006/jmaa.2000.7068