Generalized numerical radius inequalities for certain operator matrices
Abstract
In this article, a series of new inequalities involving the $q$-numerical radius for $n\times n$ tridiagonal, and anti-tridiagonal operator matrices has been established. These inequalities serve to establish both lower and upper bounds for the $q$-numerical radius of operator matrices. Additionally, we developed $q$-numerical radius inequalities for $n\times n$ circulant, skew circulant, imaginary circulant, imaginary skew circulant operator matrices. Important examples have been used to illustrate the developed inequalities. In this regard, analytical expressions and a numerical algorithm have also been employed to obtain the $q$-numerical radii. We also provide a concluding section, which may lead to several new problems in this area.
- Publication:
-
arXiv e-prints
- Pub Date:
- January 2025
- DOI:
- arXiv:
- arXiv:2501.06995
- Bibcode:
- 2025arXiv250106995S
- Keywords:
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- Mathematics - Functional Analysis;
- 47A12;
- 47A30;
- 47A63;
- 15A60
- E-Print:
- 23 pages, 9 figures