Results 91 to 100 of about 3,589,565 (274)

Bounded linear non-absolutely summing operators

open access: yesJournal of Mathematical Analysis and Applications, 2008
Let \(E\) and \(F\) be Banach spaces. A subset \(M\) of \(E\) is said to be lineable if there exists an infinite-dimensional vector space \(V\subset M\cup\{0\}\). Let \(\Pi_{p}(E;F)\) and \(I_{p}(E;F)\) represent the vector spaces of all absolutely \(p\)-summing operators and \(p\)-integral operators from \(E\) to \(F\), respectively.
PUGLISI, DANIELE, J. B. SEOANE SEPULVEDA
openaire   +2 more sources

Spatial biology in cancer epigenetics

open access: yesMolecular Oncology, EarlyView.
Spatial epigenomics combines molecular profiling with tissue architecture to reveal how gene regulation is organized within intact tissues. In cancer, these technologies uncover the mechanisms driving tumor heterogeneity and microenvironmental interactions, opening new opportunities for biomarker discovery and precision medicine.
Eva Crespo‐García, Manel Esteller
wiley   +1 more source

On the Complex Symmetric and Skew-Symmetric Operators with a Simple Spectrum

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2011
In this paper we obtain necessary and sufficient conditions for a linear bounded operator in a Hilbert space H to have a three-diagonal complex symmetric matrix with non-zero elements on the first sub-diagonal in an orthonormal basis in H.
Sergey M. Zagorodnyuk
doaj   +1 more source

Weyl's Theorems and Extensions of Bounded Linear Operators

open access: yesTokyo Journal of Mathematics, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
AIENA, Pietro   +2 more
openaire   +3 more sources

Intrapatient tumour heterogeneity and clonal evolution in an autopsy study of metastatic salivary gland cancer

open access: yesMolecular Oncology, EarlyView.
Tumour heterogeneity and clonal evolution of metastatic salivary gland cancer were evaluated in two patients with adenoid carcinoma and one patient with myoepithelial carcinoma. Radiology‐guided autopsy enabled multi‐region sampling (total samples n = 149), followed by whole‐genome sequencing and phylogenetic reconstruction (17 tumour samples, 4–7 per ...
Gerben Lassche   +10 more
wiley   +1 more source

On Isolated Points of the Spectrum of a Bounded Linear Operator [PDF]

open access: yesProceedings of the American Mathematical Society, 1993
For a bounded linear operator A A on a Banach space we characterize the isolated points in the spectrum of
openaire   +3 more sources

ADP‐ribosylation: An emerging regulator of the epigenome

open access: yesMolecular Oncology, EarlyView.
ADP‐ribosylation has emerged as a dynamic epigenetic signaling mechanism that modifies histones and chromatin‐associated proteins. Through coordinated PARylation and MARylation, it integrates with other histone modifications to regulate chromatin structure, transcription factor activity, and gene expression, influencing genome function and disease ...
Cristel V. Camacho   +2 more
wiley   +1 more source

On the Structure of Supercyclic Operators on the Operator Algebra

open access: yesJournal of Mathematical Extension, 2013
For a separable Banach space X, let L denotes the algebra of bounded operators on X endowed with the strong operator topology. In this note we provide a sufficient condition,in terms of open set in the strong operator topology, for a bounded linear ...
H. Rezaei
doaj  

Measure of Noncompactness for Compact Matrix Operators on Some BK Spaces

open access: yesJournal of Function Spaces, 2014
We study the spaces w0p, wp, and w∞p of sequences that are strongly summable to 0, summable, and bounded with index p≥1 by the Cesàro method of order 1 and establish the representations of the general bounded linear operators from the spaces wp into the ...
E. Malkowsky, A. Alotaibi
doaj   +1 more source

Arginine methylation as a regulatory ratchet in cancer: From substrate selection to malignant‐state stabilization

open access: yesMolecular Oncology, EarlyView.
Arginine methylation can be viewed as a persistence‐prone post‐translational modification regulated by a network of PRMTs. Competitive and compensatory interactions among PRMTs can redistribute methylation across substrate pools shaped by sequence, structural, spatial, and environmental layers, reinforcing RNA‐processing, chromatin, and signaling ...
So Hyun Kwon, Ji Min Lee
wiley   +1 more source

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