Results 131 to 140 of about 38,889 (311)
Hermitian weighted composition operators on H2
Weighted composition operators have been related to products of composition operators and their adjoints and to isometries of Hardy spaces. In this paper, we identify the Hermitian weighted composition operators on H2 and compute their spectral measures.
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core +1 more source
Amino acids sequence of two different proteins with the same sequence (chameleon sequence—black boxes) represent in 3D structure of the proteins different secondary structures: HHHH—helical and BBB—Beta‐structural. The chains folded in water environment adopt different III‐order structures in which the chameleon fragments appear to adopt similar status
Irena Roterman +4 more
wiley +1 more source
Compact differences of weighted composition operators on the weighted Bergman spaces. [PDF]
Wang M, Yao X, Chen F.
europepmc +1 more source
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill +4 more
wiley +1 more source
Commutants of composition operators
grantor: University of TorontoLet $C\sb{\phi}$ be a composition operator on $H\sp2(D).$ We consider which operators A commute with $C\sb{\phi}.$ In particular, we prove that, unless $\phi$ is an elliptic disc automorphism of finite periodicity,
Cload, Bruce
core +1 more source
Essential norm of some extensions of the generalized composition operators between kth weighted-type spaces. [PDF]
Stević S.
europepmc +1 more source
Distances Between Composition Operators
Composition operators Cϕ induced by a selfmap ϕ of some set S are operators acting on a space consisting of functions on S by composition to the right with ϕ, that is Cϕf = f ◦ ϕ.
Matache, Valentin
core
Norms of composition operators with rational symbol
We compute the norms of composition operators with rational symbols that satisfy certain properties, extending Christopher Hammond's methods on operators with linear fractional symbols.
Effinger-Dean, Sean +3 more
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Differences of weighted composition operators
Let \(\mathbb D\) be the open unit disk in the complex plane \(\mathbb C\), \(\varphi:{\mathbb D}\rightarrow {\mathbb D}\), \(\psi:{\mathbb D}\rightarrow {\mathbb C}\) be analytic functions. The weighted composition operator is acting on the functions defined on \(\mathbb D\) by the formula \[ (C_{\varphi,\psi}f)(z)=\psi(z)f(\varphi(z)), \quad z\in ...
openaire +3 more sources
Systemic dysregulation of apolipoproteins in amyotrophic lateral sclerosis serum
Amyotrophic lateral sclerosis (ALS) is a fatal disease that damages motor neurons. This study found that people with ALS show significant changes in blood fats and the proteins that carry them. Several apolipoproteins were higher, lipid balances were altered, and normal protein–lipid relationships were disrupted.
Finula I. Isik +6 more
wiley +1 more source

