Results 21 to 30 of about 8,210 (289)

Unitary similarity of matrices with quadratic minimal polynomials

open access: yesLinear Algebra and its Applications, 2002
The fact that given complex \(n\times n\) matrices \(A\) and \(B\) are (or are not) unitarily similar can be verified with the help of the Specht-Pearcy criterion [cf. \textit{C. Pearcy}, Pacific J. Math. 12, 1405-1416 (1962; Zbl 0144.37801)]. Its application involves a huge amount of computational work.
George, Alan, Ikramov, Khakim D.
openaire   +3 more sources

A complete unitary similarity invariant for unicellular matrices

open access: yesLinear Algebra and its Applications, 2011
We present necessary and sufficient conditions for an n\times n complex matrix B to be unitarily similar to a fixed unicellular (i.e., indecomposable by similarity) n\times n complex matrix ...
Farenick, Douglas   +2 more
openaire   +4 more sources

Between the unitary and similarity orbits of normal operators [PDF]

open access: yesPacific Journal of Mathematics, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Guinand, Paul S., Marcoux, Laurent
openaire   +2 more sources

Sistem Federal Dalam Negara Kesatuan (Kasus Pengaturan Desentralisasi-Otonomi)

open access: yesJSP: Jurnal Ilmu Sosial dan Ilmu Politik, 2002
In fact, unitary state and federal state system has similarity in the reladon between nation orpusat and states or daerah, emphasizing in power sharing, negotiation and distribution of income.
Warsito Utomo
doaj   +1 more source

Entanglement of purification and projection operator in conformal field theories

open access: yesPhysics Letters B, 2019
We investigate entanglement of purification (EoP) in conformal field theory. By using Reeh-Schlieder theorem, we construct a set of the purification states for ρAB, where ρAB is reduced density matrix for subregion AB of a global state ρ.
Wu-Zhong Guo
doaj   +1 more source

A note on multilevel Toeplitz matrices

open access: yesSpecial Matrices, 2019
Chien, Liu, Nakazato and Tam proved that all n × n classical Toeplitz matrices (one-level Toeplitz matrices) are unitarily similar to complex symmetric matrices via two types of unitary matrices and the type of the unitary matrices only depends on the ...
Cao Lei, Koyuncu Selcuk
doaj   +1 more source

Different Measures of Structural Similarity Tap Different Aspects of Visual Object Processing

open access: yesFrontiers in Psychology, 2017
The structural similarity of objects has been an important variable in explaining why some objects are easier to categorize at a superordinate level than to individuate, and also why some patients with brain injury have more difficulties in recognizing ...
Christian Gerlach
doaj   +1 more source

Perturbations of C*-algebraic invariants [PDF]

open access: yes, 2010
Kadison and Kastler introduced a metric on the set of all C*-algebras on a fixed Hilbert space. In this paper structural properties of C*-algebras which are close in this metric are examined.
White, Stuart   +11 more
core   +1 more source

Dismielinizações primárias no sistema nervoso central

open access: yesArquivos de Neuro-Psiquiatria, 1952
Diffuse sclerosis, neuromyelitis optica, multiple sclerosis, subacute combined degeneration and acute disseminated encephalomyelitis are briefly described from the anatomical point of view, especially with reference to their variations and to those of ...
Orlando Aidar
doaj   +1 more source

Single- & double-strangeness hypernuclei up to A = 8 within χEFT [PDF]

open access: yesEPJ Web of Conferences, 2022
We investigate S=−1 and −2 hypernuclei with A = 4 − 8 employing the Jacobi-NCSM approach and in combination with baryon-baryon interactions derived within the frame work of chiral effective field theory.
Le Hoai
doaj   +1 more source

Home - About - Disclaimer - Privacy