AbstractWe give a characterization of the extremal points of the unit sphere of matrices for the unitarily invariant norms. We also investigate the properties of the dual matrices. Moreover, we show that a result given by Lau and Riha is not correct
AbstractWe give a simple proof of the inequality ⦀ AA∗X + XBB∗ ⦀ ⩾ 2 ⦀ A∗AB ⦀, where A, B, and X are...
AbstractFor a complex matrix A, there are many inequalities related to its eigenvalues, diagonal ele...
Given finite dimensional real or complex Banach spaces, E and F, with norms and , we denote by N[mu]...
AbstractA characterization of the dual matrices for the unitarily invariant norms is given. Moreover...
AbstractLet ψ be a unitarily invariant norm on the space of all n×m complex matrices, and let g:Rn→R...
AbstractA survey of linear isometries for unitarily invariant norms on real or complex rectangular m...
AbstractThe sum of the first κ singular values of an n-square complex matrix is a norm, 1 ⩽ κ ⩽ n. I...
AbstractIf s1(A) ⩾ ⋯ ⩾ sm(A) are the singular values of A ϵ Mm,n(C), and if 1 ⩽k ⩽m ⩽ and p ⩾ 1, the...
AbstractWe give a complete description of the faces of the closed unit ball of an arbitrary c-norm o...
AbstractLet ψ be a unitarily invariant norm on the space of (real or complex) n×m matrices, and g th...
AbstractLet ψ be a unitarily invariant norm on the space of (real or complex) n×m matrices, and g th...
AbstractA characterization of the dual matrices for the unitarily invariant norms is given. Moreover...
AbstractLet F denote either the complex field C or the real field R. Let V be Sn(F) or Kn(F), the ve...
AbstractWe integrate ten unitarily invariant matrix norm inequalities equivalent to the Heinz inequa...
AbstractLet ψ be a unitarily invariant norm on the space of all n×m complex matrices, and let g:Rn→R...
AbstractWe give a simple proof of the inequality ⦀ AA∗X + XBB∗ ⦀ ⩾ 2 ⦀ A∗AB ⦀, where A, B, and X are...
AbstractFor a complex matrix A, there are many inequalities related to its eigenvalues, diagonal ele...
Given finite dimensional real or complex Banach spaces, E and F, with norms and , we denote by N[mu]...
AbstractA characterization of the dual matrices for the unitarily invariant norms is given. Moreover...
AbstractLet ψ be a unitarily invariant norm on the space of all n×m complex matrices, and let g:Rn→R...
AbstractA survey of linear isometries for unitarily invariant norms on real or complex rectangular m...
AbstractThe sum of the first κ singular values of an n-square complex matrix is a norm, 1 ⩽ κ ⩽ n. I...
AbstractIf s1(A) ⩾ ⋯ ⩾ sm(A) are the singular values of A ϵ Mm,n(C), and if 1 ⩽k ⩽m ⩽ and p ⩾ 1, the...
AbstractWe give a complete description of the faces of the closed unit ball of an arbitrary c-norm o...
AbstractLet ψ be a unitarily invariant norm on the space of (real or complex) n×m matrices, and g th...
AbstractLet ψ be a unitarily invariant norm on the space of (real or complex) n×m matrices, and g th...
AbstractA characterization of the dual matrices for the unitarily invariant norms is given. Moreover...
AbstractLet F denote either the complex field C or the real field R. Let V be Sn(F) or Kn(F), the ve...
AbstractWe integrate ten unitarily invariant matrix norm inequalities equivalent to the Heinz inequa...
AbstractLet ψ be a unitarily invariant norm on the space of all n×m complex matrices, and let g:Rn→R...
AbstractWe give a simple proof of the inequality ⦀ AA∗X + XBB∗ ⦀ ⩾ 2 ⦀ A∗AB ⦀, where A, B, and X are...
AbstractFor a complex matrix A, there are many inequalities related to its eigenvalues, diagonal ele...
Given finite dimensional real or complex Banach spaces, E and F, with norms and , we denote by N[mu]...
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