Results 121 to 130 of about 256 (175)
Polynomial Numerical Hulls of Matrices
. For any n-by-n complex matrix A, we use the joint numerical range W(A,A 2,..., A k) to study the polynomial numerical hull of order k of A, denoted by V k (A). We give an analytic description of V 2 (A) when A is normal.
Chi-kwong Li, Ler Davis, Abbas Salemi
core
The solvability conditions for the inverse eigenvalue problem of normal skew J-Hamiltonian matrices. [PDF]
Zhao J, Zhang J.
europepmc +1 more source
A Note On The Field Of Values Of Non-Normal Matrices
. It is shown that the distance from zero of the field of values of a matrix A depends on how large the departure from normality is compared to the distance from the zero of the field of values of the normal part of A.
Ilse C. F. Ipsen
core
New iterative criteria for strong [Formula: see text]-tensors and an application. [PDF]
Cui J, Peng G, Lu Q, Huang Z.
europepmc +1 more source
An upper bound for the Z-spectral radius of adjacency tensors. [PDF]
Wu ZY, He J, Liu YM, Tian JK.
europepmc +1 more source
Spectral top-down recovery of latent tree models. [PDF]
Aizenbud Y +7 more
europepmc +1 more source
Sombor characteristic values of cographs. [PDF]
Raza Z, Rather BA, Imran M.
europepmc +1 more source
A new Z-eigenvalue localization set for tensors. [PDF]
Zhao J.
europepmc +1 more source
A Pilot Study Evaluating the Effects of a Technology-Based and Positive Psychological Training Intervention on Blood Pressure in African Americans With Hypertension. [PDF]
Still CH +4 more
europepmc +1 more source
On the use of larger bulges in the QR algorithm
. The role of larger bulges in the QR algorithm is controversial. Large bulges are infamous for having a strong, negative influence on the convergence of the implicit shifted QR algorithm.
Daniel Kressner
core

