New Bounds for the Euclidean Numerical Radius of Two Operators in Hilbert Spaces
This paper presents new weighted lower and upper bounds for the Euclidean numerical radius of pairs of operators in Hilbert spaces. We show that some of these bounds improve on recent results in the literature. We also find new inequalities for the numerical radius and the Davis–Wielandt radius. The lower and upper bounds we obtain are not symmetrical.
Authors
- Kais Feki (ORCID: https://orcid.org/0000-0002-9326-4173)
- Sever S Dragomir (ORCID: https://orcid.org/0000-0003-2902-6805)
- Najla Altwaijry (ORCID: https://orcid.org/0000-0001-7442-8841)
- Shigeru Furuichi (ORCID: https://orcid.org/0000-0002-9929-0954)
Institutions
- Nihon University (JP)
- University of Sfax (TN)
- King Saud University (SA)
- Victoria University (AU)
- RMIT University (AU)
- Saveetha University (IN)
Publication Details
- Journal
- Symmetry
- Published
- 2024-12-24
- DOI
- https://doi.org/10.3390/sym17010007
- Primary Topic
- Mathematical Inequalities and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- King Saud University