aInstituto de Ciencias, Universidad Nacional de Gral. Sarmiento, J.M. Gutierrez 1150, B1613GSX Los Polvorines, Argentina;bInstituto Argentino de Matemática, Saavedra 15 3° piso, C1083ACA Buenos Aires, Argentina
Abstract:
In this work we characterize normal invertible operators via inequalities with unitarily invariant norm of elementary operators.