Results 81 to 90 of about 63,505 (342)

Weighted composition operators on the Fock space [PDF]

Operators and Matrices, 2019
In this paper, we study weighted composition operators on the Fock space. We show that a weighted composition operator is cohyponorma if and only if it is normal. Moreover, we give a complete characterization of closed range weighted composition operators. Finally, we find norms of some weighted composition operators.
openaire   +2 more sources

Matrix: a complex amalgam of structures and functions in tumor microenvironment

FEBS Open Bio, EarlyView.
The matrix is a dynamic, intricate three‐dimensional mesh of biomolecules with both structural and functional properties. This review deals with the complexity of this ‘molecular amalgam’ in the tumor microenvironment and highlights its importance in the maintenance and evolution of tumors by describing certain matrix biomolecules, such as ...
Spyros S. Skandalis, Evgenia Tsoukala, Theodora D. Sarantopoulou, Maria‐Elpida Christopoulou   +3 more
wiley   +1 more source

Co‐overexpression of the caloric restriction‐induced mitochondrial factors PGC‐1α and MIPEP upregulates Phospho1 expression in adipocytes

FEBS Open Bio, EarlyView.
Caloric restriction that extends lifespan induces the expression of PGC‐1α and MIPEP in white adipose tissue. In this study, co‐overexpression of Pgc‐1α and Mipep upregulated the gene expression of PHOSPHO1. These findings provide new insights into mitochondria‐related mechanisms underlying the effects of caloric restriction in adipocytes.
Mamiko Ishimatsu, Kanari Taki, Asuka Hayami, Komachi Kato, Yuka Nozaki, Yuhei Mizunoe, Takumi Narita, Ryoichi Mori, Yoshikazu Higami, Masaki Kobayashi   +9 more
wiley   +1 more source

The Weighted Composition Operators on the Large Weighted Bergman Spaces [PDF]

Complex Analysis and Operator Theory, 2018
Complex Anal. Oper. Theory (to appear)
openaire   +3 more sources

Microfluidic electro‐viscoelastic manipulation of extracellular vesicles

FEBS Open Bio, EarlyView.
The electro‐viscoelastic manipulation as a potential method for separation of particles based on size. The particles introduced as a sheath flow migrate to the channel center under the influence of simultaneously applied electric field and pressure driven flow.
Seyedamirhosein Abdorahimzadeh, Éva Bozó, Zikrullah Bölükkaya, Artem Zhyvolozhnyi, Anatoliy Samoylenko, Henrikki Liimatainen, Seppo J. Vainio, Caglar Elbuken   +7 more
wiley   +1 more source

On the Norm of Certain Weighted Composition Operators on the Hardy Space

Abstract and Applied Analysis, 2009
We obtain a representation for the norm of certain compact weighted composition operator 𝐶𝜓,𝜑 on the Hardy space 𝐻2, whenever 𝜑(𝑧)=𝑎𝑧+𝑏 and 𝜓(𝑧)=𝑎𝑧−𝑏. We also estimate the norm and essential norm of a class of noncompact weighted composition operators ...
M. Haji Shaabani, B. Khani Robati
doaj   +1 more source

Spectra of Weighted Composition Operators with Quadratic Symbols

Concrete Operators, 2022
Previously, spectra of certain weighted composition operators W ѱ, φ on H2 were determined under one of two hypotheses: either φ converges under iteration to the Denjoy-Wolff point uniformly on all of 𝔻 rather than simply on compact subsets, or φ is ...
Doctor Jessica, Hodges Timothy, Kaschner Scott, McFarland Alexander, Thompson Derek   +4 more
doaj   +1 more source

Precision‐Optimised Post‐Stroke Prognoses

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Current medicine cannot confidently predict who will recover from post‐stroke impairments. Researchers have sought to bridge this gap by treating the post‐stroke prognostic problem as a machine learning problem, reporting prediction error metrics across samples of patients whose outcomes are known.
Thomas M. H. Hope, Howard Bowman, Rachel M. Bruce, Alex P. Leff, Cathy J. Price   +4 more
wiley   +1 more source

Order-Bounded Difference in Weighted Composition Operators Between Fock Spaces

Mathematics
There are two aims in this paper. The first aim is to characterize the order-bounded weighted composition operators between Fock spaces, and the second is to further characterize the order-bounded difference in weighted composition operators between Fock
Xiao-Feng Peng, Zhi-Jie Jiang
doaj   +1 more source

Normaloid weighted composition operators on H2 [PDF]

Journal of Mathematical Analysis and Applications, 2018
When \ph\ is an analytic self-map of the unit disk with Denjoy-Wolff point $a \in \D$, and $ (\W) = (a)$, we give an exact characterization for when \W\ is normaloid. We also determine the spectral radius, essential spectral radius, and essential norm for a class of non-compact composition operators whose symbols have Denjoy-Wolff point in \D.
openaire   +3 more sources