We study various conditions on matrices B and C under which they can be the off-diagonal blocks of a partitioned normal matrix
AbstractLet A,B, and X be n×n complex matrices such that A and B are positive semidefinite. If p,q>1...
AbstractBöttcher and Wenzel conjectured that the Frobenius norm of the commutator of two real matric...
AbstractGiven an n by n matrix A, we look for a set S in the complex plane and positive scalars m an...
We study various conditions on matrices B and C under which they can be the off-diagonal blocks of a...
AbstractIn this short note we present two simple necessary and sufficient conditions under which a m...
AbstractA sharp upper bound is obtained for ∥A+iB∥, where A and B are n×n Hermitian matrices satisfy...
AbstractWe give several criteria of unitary similarity of a normal matrix A and any matrix B in term...
AbstractLet A be an n × n normal matrix over C, and Qm, n be the set of strictly increasing integer ...
AbstractThe spread of an n×n matrix A with eigenvalues λ1,…,λn is defined by sprA=maxj,k|λj−λk|. We ...
AbstractLet A be a bounded linear operator on a Hilbert space H; denote |A| = (A∗A)12 and the norm o...
AbstractWhen can an (n-k)×(n-k) normal matrix B be imbedded in an n×n normal matrix A? This question...
AbstractSeveral norm equalities and inequalities for operator matrices are proved in this paper. The...
AbstractLet A and B be bounded linear operators acting on a Hilbert space H. It is shown that the tr...
AbstractSeveral new trace norm inequalities are established for 2n×2n block matrices, in the special...
AbstractIt is shown that the real algebra generated by a pair A,B of n × n (complex) matrices consis...
AbstractLet A,B, and X be n×n complex matrices such that A and B are positive semidefinite. If p,q>1...
AbstractBöttcher and Wenzel conjectured that the Frobenius norm of the commutator of two real matric...
AbstractGiven an n by n matrix A, we look for a set S in the complex plane and positive scalars m an...
We study various conditions on matrices B and C under which they can be the off-diagonal blocks of a...
AbstractIn this short note we present two simple necessary and sufficient conditions under which a m...
AbstractA sharp upper bound is obtained for ∥A+iB∥, where A and B are n×n Hermitian matrices satisfy...
AbstractWe give several criteria of unitary similarity of a normal matrix A and any matrix B in term...
AbstractLet A be an n × n normal matrix over C, and Qm, n be the set of strictly increasing integer ...
AbstractThe spread of an n×n matrix A with eigenvalues λ1,…,λn is defined by sprA=maxj,k|λj−λk|. We ...
AbstractLet A be a bounded linear operator on a Hilbert space H; denote |A| = (A∗A)12 and the norm o...
AbstractWhen can an (n-k)×(n-k) normal matrix B be imbedded in an n×n normal matrix A? This question...
AbstractSeveral norm equalities and inequalities for operator matrices are proved in this paper. The...
AbstractLet A and B be bounded linear operators acting on a Hilbert space H. It is shown that the tr...
AbstractSeveral new trace norm inequalities are established for 2n×2n block matrices, in the special...
AbstractIt is shown that the real algebra generated by a pair A,B of n × n (complex) matrices consis...
AbstractLet A,B, and X be n×n complex matrices such that A and B are positive semidefinite. If p,q>1...
AbstractBöttcher and Wenzel conjectured that the Frobenius norm of the commutator of two real matric...
AbstractGiven an n by n matrix A, we look for a set S in the complex plane and positive scalars m an...