Results 91 to 100 of about 14,787 (294)

Operator inequalities associated with Jensen’s inequality

, 2000
We give a survey of various operator inequalities associated with Jensen’s inequality and study the class of operator convex functions of several variables.
Frank Hansen, Hansen, Frank
core   +1 more source

Border harm and affective injustice: The politics of anger at the Melilla border, Spain

American Journal of Community Psychology, EarlyView.
Abstract This article examines protests in a detention center in Melilla, Spain—a site where structural violence intersects with the everyday harms of confinement. Adopting a justice and dignity‐centered perspective, we analyze grassroots forms of resistance emerging at the border. The study focuses on the protests of Tunisian migrants and explores the
Corina Tulbure
wiley   +1 more source

Corrigendum to “Moore-Penrose Inverse and Operator Inequalities” Extracta Mathematicae 30 (2015), 29 – 39

Extracta Mathematicae, 2017
We correct a mistake which affect our main results, namely the proof of Lemma 1. The main results of the article remain unchanged.
Ameur Seddik
doaj  

Positivity, Betweenness, and Strictness of Operator Means

Abstract and Applied Analysis, 2015
An operator mean is a binary operation assigned to each pair of positive operators satisfying monotonicity, continuity from above, the transformer inequality, and the fixed-point property.
Pattrawut Chansangiam
doaj   +1 more source

Inequalities and solution of an operator equation

Applied Mathematics Letters, 2008
The article deals with fixed points of an operator \(A:\overline{D} \to E\), where \(D\) is a bounded open convex set in a real Banach space \(E\), \(0 \in D\). It is assumed that \(I - A\) is a closed operator and \(\alpha(AD) < \alpha(D)\), where \(\alpha\) denotes the noncompact measure (such operators are called by the authors \textit{semi-closed \(
Chuanxi Zhu, Zongben Xu
openaire   +1 more source

Jordan's Inequality: Refinements, Generalizations, Applications and Related Problems

, 2006
This is an expository article. Some developments on refinements, generalizations, applications of Jordan’s inequality and related problems, including some estimates for three classes of complete elliptic integrals and several proofs of Wilker’s ...
Qi, Feng
core  

Sherman’s Operator Inequality

In this paper we deal with Sherman’s inequality and its complementary inequalities for operator convex functions, whose arguments are the bounded self-adjoint operators from C* -algebra on a Hilbert space and positive linear mappings between C* -algebras.
Bradanović S.I., Mićić J., Pečarić J.   +2 more
core   +1 more source

Trade Realignments and the Need for Integrated Modeling Research in Latin America's Agri‐Food Sector

Agribusiness, EarlyView.
Emiliano Lopez Barrera
wiley   +1 more source

Negotiating contested spaces and places: Narratives of social suffering and resistance in racialized Cape Town communities

American Journal of Community Psychology, EarlyView.
Abstract This study employs a schizocartographic approach to explore community narratives of space, memory, and violence in Kraaifontein, Cape Town. Through participants' accounts, ordinary places—gardens, shops, blocks, sports grounds, and streets—emerge as ambivalent geographies where trauma, resilience, and belonging intersect.
Guido Veronese, Chiara Fiscone, Ashraf Kagee   +2 more
wiley   +1 more source

Converses of the Cauchy-Schwartz Inequality in the C*-framework

, 2000
In this paper, we present several multiplicative and additive converses of the Cauchy-Schwarz inequality in the framework of C*−algebra theory. Our results complement those obtained by M. Fujii, T.
Niculescu, Constantin P
core