Results 31 to 40 of about 10,020,003 (308)

Positive linear maps and spreads of matrices-II

open access: yesLinear Algebra and its Applications, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bhatia, Rajendra, Sharma, Rajesh
openaire   +1 more source

Weighted arithmetic–geometric operator mean inequalities

open access: yesJournal of Inequalities and Applications, 2018
In this paper, we refine and generalize some weighted arithmetic–geometric operator mean inequalities due to Lin (Stud. Math. 215:187–194, 2013) and Zhang (Banach J. Math. Anal. 9:166–172, 2015) as follows: Let A and B be positive operators.
Jianming Xue
doaj   +1 more source

Detecting and quantifying entanglement on near-term quantum devices

open access: yesnpj Quantum Information, 2022
Quantum entanglement is a key resource in quantum technology, and its quantification is a vital task in the current noisy intermediate-scale quantum (NISQ) era.
Kun Wang   +4 more
doaj   +1 more source

Asymptotic lifts of positive linear maps [PDF]

open access: yesPacific Journal of Mathematics, 2007
We show that the notion of asymptotic lift generalizes naturally to normal positive maps $ϕ$ acting on von Neumann algebras M. We focus on cases in which the domain of the asymptotic lift can be embedded as an operator subsystem of M, and characterize when that subsystem is a Jordan subalgebra of M in terms of the asymptotic multiplicative properties ...
Arveson, William, Størmer, Erling
openaire   +3 more sources

Extensions of Kadison’s inequality on positive linear maps

open access: yesLinear Algebra and its Applications, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yuan, Jiangtao, Ji, Guoxing
openaire   +2 more sources

More inequalities for positive linear maps [PDF]

open access: yesJournal of Mathematical Inequalities, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sharma, Rajesh, Thakur, A.
openaire   +2 more sources

Characterization of the order relation on the set of completely n-positive linear maps between C*-algebras [PDF]

open access: yesSurveys in Mathematics and its Applications, 2007
In this paper we characterize the order relation on the set of all nondegenerate completely n-positive linear maps between C*-algebras in terms of a self-dual Hilbert module induced by each completely n-positive linear map.
Maria Joita   +2 more
doaj  

Conditional Expectations for Unbounded Operator Algebras

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2007
Two conditional expectations in unbounded operator algebras (O∗-algebras) are discussed. One is a vector conditional expectation defined by a linear map of an O∗-algebra into the Hilbert space on which the O∗-algebra acts.
Atsushi Inoue   +2 more
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Operator upper bounds for Davis-Choi-Jensen's difference in Hilbert spaces [PDF]

open access: yesMathematica Moravica
In this paper we obtain several operator inequalities providing upper bounds for the Davis-Choi-Jensen's Difference Ph (f (A)) - f (Ph (A)) for any convex function f : I → R, any selfadjoint operator A in H with the spectrum Sp (A) ⊂ I and any linear ...
Dragomir Silvestru Sever
doaj   +1 more source

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