Given a Hermitian matrix M ∈ M3(ℂ) we describe explicitly the real diagonal matrices DM such that ║M + DM║ ≤ ║M + D║ for all real diagonal matrices D ∈ M3(ℂ), where ║ · ║ denotes the operator norm. Moreover, we generalize our techniques to some n × n cases
AbstractThe paper provides a description of optimally conditioned Hermitian positive-definite block ...
We mainly consider the real or complex operator norms for real or complex matrices on finite dimensi...
In this paper, we present new algorithms that can replace the diagonal entries of a Hermitian matrix...
Given a Hermitian matrix M ∈ M3(ℂ) we describe explicitly the real diagonal matrices DM such that ║M...
AbstractWe describe properties of a Hermitian matrix M∈Mn(C) having minimal quotient norm in the fol...
We describe properties of a Hermitian matrix M ∈ Mn(C) having minimal quotient norm in the following...
We survey some results concerning the problem of finding the complex hermitian matrix or matrices of...
AbstractAn elementary proof is given that a bounded multiplicative group of complex (real) n×n nonsi...
AbstractA body of theory for κ-real and κ-hermitian matrices is developed. Some basic results for th...
AbstractLet M denote an n × n positive semidefinite Hermitian matrix,and let W = [ωij] be either a 2...
AbstractA sharp upper bound is obtained for ∥A+iB∥, where A and B are n×n Hermitian matrices satisfy...
We study a specific “anti-triangular ” Cesaró matrix corresponding to a Markov chain. We derive clos...
AbstractBoth of the following conditions are equivalent to the absoluteness of a norm ν in Cn: (1) f...
AbstractIn this work we characterize the matrices A with the following property: for each ε>0 there ...
AbstractDrew and Johnson obtained an expression for max{per A}, where A runs through all 3-by-3 real...
AbstractThe paper provides a description of optimally conditioned Hermitian positive-definite block ...
We mainly consider the real or complex operator norms for real or complex matrices on finite dimensi...
In this paper, we present new algorithms that can replace the diagonal entries of a Hermitian matrix...
Given a Hermitian matrix M ∈ M3(ℂ) we describe explicitly the real diagonal matrices DM such that ║M...
AbstractWe describe properties of a Hermitian matrix M∈Mn(C) having minimal quotient norm in the fol...
We describe properties of a Hermitian matrix M ∈ Mn(C) having minimal quotient norm in the following...
We survey some results concerning the problem of finding the complex hermitian matrix or matrices of...
AbstractAn elementary proof is given that a bounded multiplicative group of complex (real) n×n nonsi...
AbstractA body of theory for κ-real and κ-hermitian matrices is developed. Some basic results for th...
AbstractLet M denote an n × n positive semidefinite Hermitian matrix,and let W = [ωij] be either a 2...
AbstractA sharp upper bound is obtained for ∥A+iB∥, where A and B are n×n Hermitian matrices satisfy...
We study a specific “anti-triangular ” Cesaró matrix corresponding to a Markov chain. We derive clos...
AbstractBoth of the following conditions are equivalent to the absoluteness of a norm ν in Cn: (1) f...
AbstractIn this work we characterize the matrices A with the following property: for each ε>0 there ...
AbstractDrew and Johnson obtained an expression for max{per A}, where A runs through all 3-by-3 real...
AbstractThe paper provides a description of optimally conditioned Hermitian positive-definite block ...
We mainly consider the real or complex operator norms for real or complex matrices on finite dimensi...
In this paper, we present new algorithms that can replace the diagonal entries of a Hermitian matrix...
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