DOIAbstract
AbstractWe determine the maximum in the class of unitarily invariant norms ∥·∥ such that w(A)⩾∥A∥ for all n-square matrices A. Here w(A) denotes the numerical radius of A
AbstractWe determine the maximum in the class of unitarily invariant norms ∥·∥ such that w(A)⩾∥A∥ for all n-square matrices A. Here w(A) denotes the numerical radius of A
AbstractA simple algorithm is presented for computing the numerical radius of a complex matrix. It i...
In this study, we compute the unitarily invariant norms of the matrices A(z) = (z(i)z(j))(i,j=1)(n),...
Let A be an n n complex matrix and r be the maximum size of its principal submatrices with no o¤-di...
AbstractGiven n×n complex matrices A, C, the C-numerical radius of A is the nonnegative quantity rc(...
Let A be an n × n complex matrix and r be the maximum size of its principal submatrices with no off-...
In this paper, some inequalities between the numerical radius of an element from a unital normed alg...
In this paper, some inequalities between the numerical radius of an element from a unital normed alg...
A survey of linear isometries for unitarily invariant norms on real or complex rectangular matrices ...
AbstractLet A be an n×n complex matrix and r be the maximum size of its principal submatrices with n...
AbstractA survey of linear isometries for unitarily invariant norms on real or complex rectangular m...
AbstractLet A be a complex n×n matrix. We find lower bounds for its numerical radius r(A)=max{|x∗Ax|...
Upper and lower bounds of numerical radius and an equality condition (Tt eaki Yamazaki) Kanagawa Uni...
AbstractWe shall prove the inequalities|||(A+B)(A+B)∗|||⩽|||AA∗+BB∗+2AB∗|||⩽|||(A-B)(A-B)∗+4AB∗|||fo...
AbstractSome inequalities for the numerical radius, the operator norm and the maximum of the real pa...
We prove a generalized numerical radius inequality for operator ma-trices, which improves and genera...
AbstractA simple algorithm is presented for computing the numerical radius of a complex matrix. It i...
In this study, we compute the unitarily invariant norms of the matrices A(z) = (z(i)z(j))(i,j=1)(n),...
Let A be an n n complex matrix and r be the maximum size of its principal submatrices with no o¤-di...
AbstractGiven n×n complex matrices A, C, the C-numerical radius of A is the nonnegative quantity rc(...
Let A be an n × n complex matrix and r be the maximum size of its principal submatrices with no off-...
In this paper, some inequalities between the numerical radius of an element from a unital normed alg...
In this paper, some inequalities between the numerical radius of an element from a unital normed alg...
A survey of linear isometries for unitarily invariant norms on real or complex rectangular matrices ...
AbstractLet A be an n×n complex matrix and r be the maximum size of its principal submatrices with n...
AbstractA survey of linear isometries for unitarily invariant norms on real or complex rectangular m...
AbstractLet A be a complex n×n matrix. We find lower bounds for its numerical radius r(A)=max{|x∗Ax|...
Upper and lower bounds of numerical radius and an equality condition (Tt eaki Yamazaki) Kanagawa Uni...
AbstractWe shall prove the inequalities|||(A+B)(A+B)∗|||⩽|||AA∗+BB∗+2AB∗|||⩽|||(A-B)(A-B)∗+4AB∗|||fo...
AbstractSome inequalities for the numerical radius, the operator norm and the maximum of the real pa...
We prove a generalized numerical radius inequality for operator ma-trices, which improves and genera...
AbstractA simple algorithm is presented for computing the numerical radius of a complex matrix. It i...
In this study, we compute the unitarily invariant norms of the matrices A(z) = (z(i)z(j))(i,j=1)(n),...
Let A be an n n complex matrix and r be the maximum size of its principal submatrices with no o¤-di...
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