Geodesic
Numerical radius inequalities for $2\times 2$ operator matrices
Omar Hirzallah1 ; Fuad Kittaneh2 ; Khalid Shebrawi3
1 Department of Mathematics Hashemite University Zarqa, Jordan
2 Department of Mathematics University of Jordan Amman, Jordan
3 Department of Applied Sciences Al-Balqa' Applied University Salt, Jordan
Studia Mathematica, Tome 210 (2012) no. 2, pp. 99-115

Voir la notice de l'article provenant de la source Institute of Mathematics Polish Academy of Sciences

We derive several numerical radius inequalities for $2\times 2 $ operator matrices. Numerical radius inequalities for sums and products of operators are given. Applications of our inequalities are also provided.
DOI : 10.4064/sm210-2-1
Keywords: derive several numerical radius inequalities times operator matrices numerical radius inequalities sums products operators given applications inequalities provided

Omar Hirzallah 1 ; Fuad Kittaneh 2 ; Khalid Shebrawi 3

1 Department of Mathematics Hashemite University Zarqa, Jordan
2 Department of Mathematics University of Jordan Amman, Jordan
3 Department of Applied Sciences Al-Balqa' Applied University Salt, Jordan 
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Omar Hirzallah; Fuad Kittaneh; Khalid Shebrawi. Numerical radius inequalities for $2\times  2$ operator matrices. Studia Mathematica, Tome 210 (2012) no. 2, pp. 99-115. doi: 10.4064/sm210-2-1

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