Results 91 to 100 of about 38,889 (311)
Compact differences of composition operators
, 2005 A characterization of compact difference is given for composition operators acting on the standard weighted Bergman spaces and necessary conditions are given on a larger scale of weighted Dirichlet spaces.
Moorhouse, Jennifer
core +1 more source
Molecular Oncology, EarlyView.Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson +9 more
wiley +1 more source
Continuous Frames Under the Weighted Composition Operators on the Weighted Bergman Space
AxiomsWe investigate the behavior of continuous frames in the weighted Bergman space Aα2 over the unit disc under the action of weighted composition operators. Motivated by developments in the discrete frame setting, we provide a comprehensive characterization
Fatma Bozkurt, Faruk Yilmaz
doaj +1 more source
Composition Operators on Cesàro Function Spaces
Journal of Function Spaces, 2014 The compact, invertible, Fredholm, and closed range composition operators are characterized. We also make an effort to compute the essential norm of composition operators on the Cesàro function spaces.
Kuldip Raj, Suruchi Pandoh, Seema Jamwal
doaj +1 more source
Invariant subspaces of composition operators
, 1999 grantor: University of TorontoThis thesis is devoted to the study of composition operators on the Hardy Hilbert space. First, we investigate the structure of the invariant subspaces of composition operators.
Mahvidi, Ali
core +1 more source
Composition operators on $F^{+}$ [PDF]
Studia Mathematica, 1976 Roberts, James W., Stoll, Manfred
openaire +2 more sources
Spectra of Some Composition Operators
Journal of Functional Analysis, 1994 If \(\mathcal H\) is a Hilbert space of holomorphic functions on the unit ball \(B_ N\) in \({\mathbf C}^ N\) and \(\phi\) is a non-constant holomorphic map of the unit ball into itself, the composition operator \(C_ \varphi\) is the operator on \(\mathcal H\) defined by \(C_ \varphi f= f\circ \varphi\). The authors give spectral properties for bounded
Cowen, C.C., Maccluer, B.D.
openaire +1 more source
Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer
Molecular Oncology, EarlyView.Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley +1 more source
Weighted Composition Operators and Supercyclicity Criterion
International Journal of Mathematics and Mathematical Sciences, 2011 We consider an equivalent condition to the property of Supercyclicity Criterion, and then we investigate this property for the adjoint of weighted composition operators acting on Hilbert spaces of analytic functions.
Bahmann Yousefi, Javad Izadi
doaj +1 more source
On the connected component of compact composition operators on the Hardy space
, 2008 We show that there exist non-compact composition operators in the connected component of the compact ones on the classical Hardy space H2. This answers a question posed by Shapiro and Sundberg in 1990.
González, María J. +4 more
core +1 more source