Pseudo-spectrum and Numerical Range of Matrices Walker of Dimension Three
Khalef BOUİCH, Derkaoui RAFİK, Abderrahmane SMAIL · DergiPark (Istanbul University) · 2022
The study of numerical range, spectrum and pseudo spectrum appears in diffrent sci- entific fields, for example the domain of spectral theory, the stability of dynamics elec- tricity, physics, the quantum mechanics. In this paper, we find the spectrum, pseudo- spectrum and numerical range on Walker manifolds of dimension three. Two examples are given for metric g f .