A numerical radius version of Bourin’s question
We obtain a series of new inequalities for the numerical radius related to Bourins question on unitarily invariant norms. For instance, given two positive semidefinite matrices [Formula: see text] and [Formula: see text], we have [Formula: see text] where [Formula: see text] is the numerical radius.
Authors
- Fuad Kıttaneh (ORCID: https://orcid.org/0000-0003-0308-365X)
- Saja Hayajneh
Institutions
- University of Jordan (JO)
- Korea University (KR)
Publication Details
- Journal
- International Journal of Mathematics
- Published
- 2025-08-30
- DOI
- https://doi.org/10.1142/s0129167x25500545
- Primary Topic
- Mathematics and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00