Results 21 to 30 of about 169 (35)

On the correlation function of the characteristic polynomials of the hermitian Wigner ensemble

open access: yes, 2010
We consider the asymptotics of the correlation functions of the characteristic polynomials of the hermitian Wigner matrices $H_n=n^{-1/2}W_n$. We show that for the correlation function of any even order the asymptotic coincides with this for the GUE up ...
E. Brezin   +12 more
core   +1 more source

Truncated K-moment problems in several variables [PDF]

open access: yes, 2005
Let $\beta\equiv\beta^{(2n)}$ be an N-dimensional real multi-sequence of degree 2n, with associated moment matrix $\mathcal{M}(n)\equiv \mathcal{M}(n)(\beta)$, and let $r:=rank \mathcal{M}(n)$.
Curto, Raul E., Fialkow, Lawrence A.
core   +1 more source

Arithmetic, geometric, and harmonic means for accretive-dissipative matrices

open access: yes, 2016
The concept of Loewner (partial) order for general complex matrices is introduced. After giving the definition of arithmetic, geometric, and harmonic mean for accretive-dissipative matrices, we study their basic properties.
Lin, Minghua
core  

"On some definitions in matrix algebra" [PDF]

open access: yes
Many definitions in matrix algebra are not standardized. This notediscusses some of thepitfalls associated with undesirable orwrong definitions, anddealswith central conceptslikesymmetry, orthogonality, square root, Hermitian and quadratic forms, and ...
Jan R. Magnus, Karim M. Abadir
core  

Krylov subspaces associated with higher-order linear dynamical systems

open access: yes, 2005
A standard approach to model reduction of large-scale higher-order linear dynamical systems is to rewrite the system as an equivalent first-order system and then employ Krylov-subspace techniques for model reduction of first-order systems.
Freund, Roland W.
core   +1 more source

Factorizable matrices

open access: yesSpecial Matrices, 2013
Fiedler Miroslav, Hall Frank J.
doaj   +1 more source

Aging modifies the effect of cardiac output on middle cerebral artery blood flow velocity. [PDF]

open access: yesPhysiol Rep, 2017
Bronzwaer AGT   +6 more
europepmc   +1 more source

Bariatric surgery emphasizes biological sex differences in rodent hepatic lipid handling. [PDF]

open access: yesBiol Sex Differ, 2017
Grayson BE   +8 more
europepmc   +1 more source

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