# Further inequalities for operator space numerical radius on 2*2 operator ‎matrices

Document Type: Research Paper

Author

Faculty of Basic Sciences‎, ‎Department of Mathematics‎, ‎University of Zabol‎, ‎Zabol‎, ‎Iran.

Abstract

‎We present some inequalities for operator space numerical radius of $2\times 2$ block matrices on the matrix space $\mathcal{M}_n(X)$‎, ‎when $X$ is a numerical radius operator space‎. ‎These inequalities contain some upper and lower bounds for operator space numerical radius.

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Main Subjects

### References

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### History

• Receive Date: 02 January 2016
• Revise Date: 21 May 2016
• Accept Date: 22 May 2016