پديدآورندگان :
Lashkaripour Rahmatollah lashkari@hamoon.usb.ac.ir Department of Mathematics, Faculty of Mathematics, University of Sistan and Baluchestan, Zahedan, Iran;
, Bakherad Mojtaba mojtaba.bakherad@yahoo.com Department of Mathematics, Faculty of Mathematics, University of Sistan and Baluchestan, Zahedan, Iran; , Hajmohamadi Monire monire.hajmohamadi@yahoo.com Department of Mathematics, Faculty of Mathematics, University of Sistan and Baluchestan, Zahedan, Iran;
كليدواژه :
Numerical radius , off , diagonal part , operator matrix
چكيده فارسي :
In this study, we give some inequalities involving pow- ers of the numerical radius for the off-diagonal parts of 2_x0002_2 oper- ator matrices, which improves and extends earlier inequalities
