Results 81 to 90 of about 456,012 (313)

On some numerical characteristics of operators

Arab Journal of Mathematical Sciences, 2015
We investigate some numerical characteristics of Toeplitz operators including the numerical range, maximal numerical range and maximal Berezin set. Further, we establish an inequality for the Berezin number of an arbitrary operator on the Hardy–Hilbert ...
M. Gürdal, M.T. Garayev, S. Saltan, U. Yamancı   +3 more
doaj   +1 more source

A remark on the generalized numerical range of a normal matrix [PDF]

, 1977
Yik-Hoi Au-Yeung, Fuk-yum Sing
openalex   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Numerical Range of Two Operators in Semi-Inner Product Spaces

Abstract and Applied Analysis, 2012
In this paper, the numerical range for two operators (both linear and nonlinear) have been studied in semi-inner product spaces. The inclusion relations between numerical range, approximate point spectrum, compression spectrum, eigenspectrum, and ...
N. K. Sahu, C. Nahak, S. Nanda
doaj   +1 more source

Limited approximation of numerical range of normal matrix [PDF]

, 2010
Μαρία Αδάμ, John Maroulas
openalex   +1 more source

An Efficient Numerical Model to Predict the Mechanical Response of a Railway Track in the Low-Frequency Range [PDF]

, 2022
Maryam El Moueddeb, François Louf, Pierre‐Alain Boucard, Franck Dadié, Gilles Saussine, Danilo Sorrentino   +5 more
openalex   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Numerical studies of a one-dimensional three-spin spin-glass model with long-range interactions [PDF]

, 2010
Derek Larson, Helmut G. Katzgraber, M. A. Moore, A. P. Young   +3 more
openalex   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

The Numerical Range of Toeplitz Operator on the Polydisk

Abstract and Applied Analysis, 2009
The numerical range and normality of Toeplitz operator acting on the Bergman space and pluriharmonic Bergman space on the polydisk is investigated in this paper.
Dinggui Gu
doaj   +1 more source