Results 31 to 40 of about 237,012 (170)

Extreme positive linear maps between Jordan Banach algebras [PDF]

Bulletin of the Australian Mathematical Society, 1987
Let A and B be unital JB-algebras. We study the extremal structure of the convex set S (A,B) of all identity preserving positive linear maps from A to B. We show that every unital Jordan homomorphism from A to B is an extreme point of S (A,B). An extreme point of S (A,B) need not be a homomorphism and we show that, given A, every extreme point of S (A ...
Chu, Cho-Ho, Jeffries, Nigel P. H.
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Approximation theorems using the method of $\mathcal{I}_{2}$-statistical convergence

Journal of Amasya University the Institute of Sciences and Technology
In this study, we utilize the concept of $\mathcal{I}$-statistical convergence for double sequences to establish a general approximation theorem of Korovkin-type for double sequences of positive linear operators $(PLOs)$ mapping from $H_{\omega }\left( X\
Sevda Yıldız, Kamil Demirci, Fadime Dirik   +2 more
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Assessment of normal myelination in infants and young children using the T1w/T2w mapping technique

Frontiers in Neuroscience, 2023
BackgroundWhite matter myelination is a crucial process of CNS maturation. The purpose of this study was to validate the T1w/T2w mapping technique for brain myelination assessment in infants and young children.MethodsNinety-four patients (0–23 months of ...
Elena Filimonova, Elena Filimonova, Evgenia Amelina, Aleksandra Sazonova, Aleksandra Sazonova, Boris Zaitsev, Boris Zaitsev, Jamil Rzaev, Jamil Rzaev, Jamil Rzaev   +9 more
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A Grüss inequality for n-positive linear maps

Linear Algebra and its Applications, 2010
Let $\mathscr{A}$ be a unital $C^*$-algebra and let $ : \mathscr{A} \to {\mathbb B}({\mathscr H})$ be a unital $n$-positive linear map between $C^*$-algebras for some $n \geq 3$. We show that $$\| (AB)- (A) (B)\| \leq (A,||\cdot||)\, (B,||\cdot||)$$ for all operators $A, B \in \mathscr{A}$, where $ (C,\|\cdot\|)$ denotes the operator norm ...
Moslehian, Mohammad Sal, Rajić, Rajna
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Mapping Foliar Nutrition Using WorldView-3 and WorldView-2 to Assess Koala Habitat Suitability

Remote Sensing, 2019
Conservation planning and population assessment for widely-distributed, but vulnerable, arboreal folivore species demands cost-effective mapping of habitat suitability over large areas.
Huiying Wu, Noam Levin, Leonie Seabrook, Ben Moore, Clive McAlpine   +4 more
doaj   +1 more source

Approximate Iteration Algorithm with Error Estimate for Fixed Point of Nonexpansive Mappings

Abstract and Applied Analysis, 2012
The purpose of this article is to present a general viscosity iteration process {xn} which defined by xn+1=(I-αnA)Txn+βnγf(xn)+(αn-βn)xn and to study the convergence of {xn}, where T is a nonexpansive mapping and A is a strongly positive linear operator,
Yongfu Su
doaj   +1 more source

QTL mapping and QTL × environment interaction analysis of multi-seed pod in cultivated peanut (Arachis hypogaea L.)

Crop Journal, 2019
To dissect the genetic mechanism of multi-seed pod in peanut, we explored the QTL/gene controlling multi-seed pod and analyzed the interaction effect of QTL and environment. Two hundred and forty eight recombinant inbred lines (RIL) from cross Silihong × 
Liang Wang, Xinlei Yang, Shunli Cui, Guojun Mu, Xingming Sun, Lifeng Liu, Zichao Li   +6 more
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Robust Invariance Conditions of Uncertain Linear Discrete Time Systems Based on Semidefinite Programming Duality

Mathematics
This article proposes a novel robust invariance condition for uncertain linear discrete-time systems with state and control constraints, utilizing a method of semidefinite programming duality.
Hongli Yang, Chengdan Wang, Xiao Bi, Ivan Ganchev Ivanov   +3 more
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Nonlocal q-fractional boundary value problem with Stieltjes integral conditions

Nonlinear Analysis, 2019
In this paper, we are dedicated to investigating a new class of one-dimensional lower-order fractional q-differential equations involving integral boundary conditions supplemented with Stieltjes integral.
Jing Ren, Chengbo Zhai
doaj   +1 more source

Entanglement Witnesses Arising from Exposed Positive Linear Maps [PDF]

Open Systems & Information Dynamics, 2011
We consider entanglement witnesses arising from positive linear maps which generate exposed extremal rays. We show that every entangled state can be detected by one of these witnesses, and this witness detects a unique set of entangled states among those. Therefore, they provide a minimal set of witnesses to detect any kind of entanglement in a sense.
Ha, Kil-Chan, Kye, Seung-Hyeok
openaire   +3 more sources