Results 51 to 60 of about 100,426 (289)

Jensen\u27s inequality [PDF]

open access: yes, 2005
U ovom radu dokazana je Jensenova nejednakost. Na osnovi velikog broja različitih primjera ilustrirane su njezine primjene. Također dano je mnoštvo zadataka za vježbu.In this paper Jensen\u27s inequality si proved. Its application is illustrated by means
I. Ilišević
core   +1 more source

An operator inequality related to Jensen’s inequality [PDF]

open access: yesProceedings of the American Mathematical Society, 2001
Summary: For bounded non-negative operators \(A\) and \(B\), Furuta showed \[ 0\leq A \leq B \text{ implies } A^{\frac{r}{2}}B^sA^{\frac{r}{2}} \leq (A^{\frac{r}{2}}B^tA^{\frac{r}{2}})^{\frac{s+r}{t+r}}\quad (0\leq r, 0\leq s \leq t).
openaire   +2 more sources

An observation‐driven state‐space model for claims size modelling

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract State‐space models are popular in econometrics. Recently, these models have gained some popularity in the actuarial literature. The best known state‐space models are of the Kalman‐filter type. These are called parameter‐driven because the observations do not impact the state‐space dynamics.
Jae Youn Ahn   +2 more
wiley   +1 more source

On the Jensen’s inequality and its variants

open access: yesAIMS Mathematics, 2020
The main purpose of this paper is to discuss operator Jensen inequality for convex functions, without appealing to operator convexity. Several variants of this inequality will be presented, and some applications will be shown too.
Elahe Jaafari   +3 more
doaj   +1 more source

Operator inequalities related to weak 2-positivity [PDF]

open access: yes, 2012
In this paper we introduce the notion of weak 2-positivity and present some examples. We establish some operator Cauchy--Schwarz inequalities involving the geometric mean and give some applications. In particular, we present some operator versions of Hua'
Jun Ichi Fujii, Mohammad Sal, Moslehian
core  

Bayesian clustering of multivariate extremes

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract The asymptotic dependence structure between multivariate extreme values is fully characterized by their projections on the unit simplex. Under mild conditions, the only constraint on the resulting distributions is that their marginal means must be equal, which results in a nonparametric model that can be difficult to use in applications ...
Sonia Alouini, Anthony C. Davison
wiley   +1 more source

Jensen\u27s inequality for nonconvex functions [PDF]

open access: yes, 2004
Jensen\u27s inequality is formulated for convexifiable (generally nonconvex ...
S. Zlobec
core  

Board Composition, Sustainability Reporting, and the Moderating Role of a Contextual Issue: Evidence From an Emerging Country

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This study examines the impact of board composition (BC) on sustainability reporting (SR) in financial firms listed on the Dhaka Stock Exchange (DSE), with a focus on the moderating role of non‐performing loans (NPLs). Using 421 firm‐year observations from 49 firms (2016–2024) and an ordinary least squares (OLS) regression model, the results ...
Sumon Kumar Das, Prome Akter
wiley   +1 more source

A Matrix Convexity Approach to Some Celebrated Quantum Inequalities

open access: yes, 2008
Some of the important inequalities associated with quantum entropy are immediate algebraic consequences of the Hansen-Pedersen-Jensen inequality. A general argument is given using matrix perspectives of operator convex functions. A matrix analogue of Mar\
E. G. Effros, Hansen
core   +2 more sources

Order generalised gradient and operator inequalities [PDF]

open access: yes, 2015
We introduce the notion of order generalised gradient, a generalisation of the notion of subgradient, in the context of operator-valued functions. We state some operator inequalities of Hermite-Hadamard and Jensen types. We discuss the connection between
Dragomir, Sever S, Kikianty, E
core   +1 more source

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