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Commutator inequalities for Hilbert space operatorsOmar Hirzallah · 2009
Singular values, norms, and commutatorsOmar Hirzallah; Fuad Kittaneh · 2010
Numerical Radius Inequalities for Certain 2 ×Omar Hirzallah; Fuad Kittaneh; Khalid Shebrawi · 2011
Inequalities for Contraction MatricesAbu-As’ad, Ata; Hirzallah, Omar · Numerical Functional Analysis and Optimization · 2019
Commutator Inequalities for the Hilbert–Schmidt NormOmar Hirzallah; Fuad Kittaneh · 2002
Jensen matrix inequalities and direct sumsBourin, Jean-Christophe; Hirzallah, Omar; Kittaneh, Fuad · Linear and Multilinear Algebra · 2010
Inequalities for sums and products of operatorsOmar Hirzallah · Linear Algebra and its Applications · 2005