Results 101 to 110 of about 141 (138)

Linear maps preserving the generalized spectrum

open access: yes, 2007
: Let H be an infinite-dimensional separable complex Hilbert space and B(H) the algebra of all bounded linear operators on H. For an operator T in B(H), let σg(T) denote the generalized spectrum of T.
Mbekhta, Mostafa, Mostafa Mbekhta
core  

Hypertension-induced subclinical vascular and cognitive changes are reversible-An observational cohort study. [PDF]

open access: yesJ Clin Hypertens (Greenwich), 2019
Czuriga-Kovács KR   +12 more
europepmc   +1 more source

Stability of the Essential Spectrum of Second-Order Complex Elliptic Operators

open access: yes, 2007
We prove compactness of the resolvent difference for second order divergence form operators whose matrix functions are close enough at infinity. Our theorems include certain subelliptic cases as well as cases with unbounded coefficients.
El Maati Ouhabaz, Peter Stollmann
core  

Harnessing glycoenzyme engineering for synthesis of bioactive oligosaccharides. [PDF]

open access: yesInterface Focus, 2019
Benkoulouche M   +4 more
europepmc   +1 more source

Equation de Fokker-Planck fractionnaire avec une force confinante générale

open access: yes, 2018
This article studies a Fokker-Planck type equation of fractional diffusion with conservative drift ∂f/∂t = ∆^(α/2) f + div(Ef), where ∆^(α/2) denotes the fractional Laplacian and E is a confining force field.
Lafleche, Laurent
core  

Developmental roles of Drosophila tRNA processing endonuclease RNase ZL as revealed with a conditional rescue system. [PDF]

open access: yesDev Biol, 2013
Xie X   +6 more
europepmc   +1 more source

A stochastic adding machine and complex dynamics. [PDF]

open access: yesNonlinearity, 2000
Killeen PR, Taylor TJ.
europepmc   +1 more source

Random Schrödinger operators arising from lattice gauge fields I: existence and examples

open access: yes, 1995
We consider models of random Schrodinger operators which exist thanks to a cohomological theorem in ergodic theory. Examples are ergodic Schrodinger operators with random magnetic fluxes on discrete two-dimensional lattices or non-periodic situations ...
Oliver Knill
core  

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