On 𝔸-numerical radius inequalities for 2 × 2 operator matrices

2020 ◽  
pp. 1-21
Author(s):  
Nirmal Chandra Rout ◽  
Satyajit Sahoo ◽  
Debasisha Mishra
Keyword(s):  
Operator Matrices ◽  
Numerical Radius

Numerical radius inequalities for 2×2 operator matrices

2012 ◽  
Vol 210 (2) ◽  
pp. 99-115 ◽  
Author(s):  
Omar Hirzallah ◽  
Fuad Kittaneh ◽  
Khalid Shebrawi
Keyword(s):  
Operator Matrices ◽  
Numerical Radius

On Numerical Radius Inequalities for Operator Matrices

2019 ◽  
Vol 40 (11) ◽  
pp. 1231-1241 ◽  
Author(s):  
Hanane Guelfen ◽  
Fuad Kittaneh
Keyword(s):  
Operator Matrices ◽  
Numerical Radius

A novel numerical radius upper bounds for 2 × 2 operator matrices

2020 ◽  
pp. 1-12
Author(s):  
Mohammed Al-Dolat ◽  
Imad Jaradat ◽  
Baráa Al-Husban
Keyword(s):  
Upper Bounds ◽  
Operator Matrices ◽  
Numerical Radius

Numerical Radius Inequalities for Certain 2 × 2 Operator Matrices

2011 ◽  
Vol 71 (1) ◽  
pp. 129-147 ◽  
Author(s):  
Omar Hirzallah ◽  
Fuad Kittaneh ◽  
Khalid Shebrawi
Keyword(s):  
Operator Matrices ◽  
Numerical Radius

Numerical radius inequalities for operator matrices

2009 ◽  
Vol 57 (4) ◽  
pp. 421-427 ◽  
Author(s):  
Wathiq Bani-Domi ◽  
Fuad Kittaneh
Keyword(s):  
Operator Matrices ◽  
Numerical Radius

scholarly journals Some inequalities involving Hilbert-Schmidt numerical radius on 2 x 2 operator matrices

Filomat ◽  
2020 ◽  
Vol 34 (14) ◽  
pp. 4649-4657
Author(s):  
Monire Hajmohamadi ◽  
Rahmatollah Lashkaripour
Keyword(s):  
Operator Matrices ◽  
Numerical Radius ◽  
Cartesian Decomposition

We present some inequalities related to the Hilbert-Schmidt numerical radius of 2 x 2 operator matrices. More precisely, we present a formula for the Hilbert-Schmidt numerical radius of an operator as follows: w2(T) = sup ?2+?2=1 ||?A + ?B||2, where T = A + iB is the Cartesian decomposition of T ? HS(H).

Sign in / Sign up

Export Citation Format

Share Document