Results 21 to 30 of about 586,773 (264)

A characterization of positive linear maps and criteria of entanglement for quantum states

, 2010
Let $H$ and $K$ be (finite or infinite dimensional) complex Hilbert spaces. A characterization of positive completely bounded normal linear maps from ${\mathcal B}(H)$ into ${\mathcal B}(K)$ is given, which particularly gives a characterization of ...
Bengtsson I Zyczkowski K, Chen K, Choi M D, Choi M D, Chruściński D, Depillis J, Dixmier J, Effros E G, Hou J C, Hou J C, Hou J C, Jinchuan Hou, Kadison R V, Kye S-H, Nielsen M A, Paulsen V, Stinespring W F   +16 more
core   +1 more source

Linear positive operators generated by functions

Journal of Numerical Analysis and Approximation Theory, 1976
Not available.
G.A. Jägers
doaj   +2 more sources

Approximation of functions of two variables by certain linear positive operators

, 2007
We introduce certain linear positive operators and study some approximation properties of these operators in the space of functions, continuous on a compact set, of two variables.
Bascanbaz-Tunca, Gulen, Olgun, Ali, Tasdelen, Fatma   +2 more
core   +1 more source

On New Classes of Stancu-Kantorovich-Type Operators

Mathematics, 2021
The present paper introduces new classes of Stancu–Kantorovich operators constructed in the King sense. For these classes of operators, we establish some convergence results, error estimations theorems and graphical properties of approximation for the ...
Bianca Ioana Vasian, Ștefan Lucian Garoiu, Cristina Maria Păcurar   +2 more
doaj   +1 more source

A Dunkl Analogue of Operators Including Two-variable Hermite polynomials

, 2017
The aim of this paper is to introduce a Dunkl generalization of the operators including two variable Hermite polynomials which are defined by Krech [14](Krech, G.
Aktaş, Rabia, Taşdelen, Fatma, Çekim, Bayram   +2 more
core   +1 more source

Extreme Positive Linear Operators.

MATHEMATICA SCANDINAVICA, 1969
Made available in DSpace on 2014-12-09T22:17:41Z (GMT). No. of bitstreams: 1 6808044.pdf: 4439781 bytes, checksum: 3672332eda28f28f87bd9d5ae1b3d9c4 (MD5) Previous issue date: 1967 ; Embargo set by: Seth Robbins for item 61762 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs ; Restricted to ...
openaire   +2 more sources

Why and When Are Evidence‐Based Interventions Adopted in Paediatric Supportive Care? A Qualitative Exploration of the Determinants of Photobiomodulation Implementation

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Oral mucositis is a common and debilitating side effect of childhood cancer and stem cell transplant treatments. It affects the quality of life of children and young people (CYP) and places a strain on services. Photobiomodulation is recommended for oral mucositis prevention in international guidance but is poorly implemented in UK ...
Claudia Heggie, Kara A. Gray‐Burrows, Peter F. Day, Bob Phillips, Carl A. Thompson   +4 more
wiley   +1 more source

Ideal Convergence of k-Positive Linear Operators

Journal of Function Spaces and Applications, 2012
We study some ideal convergence results of k-positive linear operators defined on an appropriate subspace of the space of all analytic functions on a bounded simply connected domain in the complex plane.
Akif Gadjiev, Oktay Duman, A. M. Ghorbanalizadeh   +2 more
doaj   +1 more source

Clinical Insights Into Hypercalcemia of Malignancy in Childhood

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley   +1 more source

Neural Networks as Positive Linear Operators

Mathematics
Basic neural network operators are interpreted as positive linear operators and the related general theory applies to them. These operators are induced by a symmetrized density function deriving from the parametrized and deformed hyperbolic tangent ...
George A. Anastassiou
doaj   +1 more source