Results 31 to 40 of about 4,143 (285)
New estimates for generalized Shannon and Zipf-Mandelbrot entropies via convexity results
Results in Physics, 2020 Shannon and Zipf-Mandelbrot entropies have several applications in various fields such as ecology, statistics, physics and information theory etc. The aim of this article is to utilize some results of Jensen’s inequality for convex functions and to ...
Khurshid Ahmad +4 more
doaj +1 more source
Generalizations of Shannon type inequalities via diamond integrals on time scales
Journal of Inequalities and Applications, 2023 The paper generalizes Shannon-type inequalities for diamond integrals. It includes two-dimensional Hölder’s inequality and Cauchy–Schwartz’s inequality, which help to prove weighted Grüss’s inequality for diamond integrals.
Muhammad Bilal +3 more
doaj +1 more source
Jensen's Trace Inequality in Several Variables [PDF]
International Journal of Mathematics, 2003 For a convex, real function f, we present a simple proof of the formula [Formula: see text] valid for each tuple (x1,…, xm) of symmetric matrices in [Formula: see text] and every unital column (a1,…, am) of matrices, i.e. [Formula: see text]. This is the standard Jensen trace ine-quality. If f ≥ 0 it holds also for the unbounded trace on [Formula: see
Hansen, Frank, Pedersen, Gert K.
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Some companion inequalities to Jensen's inequality [PDF]
Mathematical Inequalities & Applications, 2000 The authors obtain some new companion inequalities to Jensen's inequality (discrete or integral). The main results are given in a very general and abstract setting, for convex functions defined on an open convex set of a normed linear space. The differentiable cases, as well as sharpness questions are also considered.
Matić, M., Pečarić, J.
openaire +2 more sources
British Educational Research Journal, EarlyView.Abstract Recruiting and retaining school leaders is a challenge in many systems worldwide. Previous research has identified three distinct ways in which succession planning can be conceptualised and approached: a ‘pipeline’ approach seeks to match supply and demand for the posts that need filling; a ‘pool’ strategy involves proactively identifying and ...
Toby Greany +3 more
wiley +1 more source
What works in internal alternative provision? A salutogenic analysis
British Educational Research Journal, EarlyView.Abstract Schools across England are setting up ‘internal alternative provision’ to meet the social, emotional and mental health needs of increasing numbers of pupils at risk of suspension, exclusion and absence. However, there is little guidance about what good practice looks like.
Emma Simpson
wiley +1 more source
Monotone trace functions of several variables
, 2005 We investigate monotone operator functions of several variables under a trace or a trace-like functional. In particular, we prove the inequality \tau(x_1... x_n)\le\tau(y_1...
Hansen, Frank
core +1 more source
The Impact of Acquisition Intensity on ESG Performance
Business Strategy and the Environment, EarlyView.ABSTRACT This study investigates the impact of Acquisition Intensity on ESG performance using a panel of 1,736 US‐listed companies from 2002 to 2023. Employing a robust OLS framework, we assess both Value‐Based and Volume‐Based Acquisition Intensity against overall ESG scores and their environmental, social, and governance pillars, controlling for firm
Ugbede Amedu +2 more
wiley +1 more source
Another Converse of Jensen's Inequality [PDF]
, 2009 We give the best possible global bounds for a form of discrete Jensen’s inequality.
Simic, Slavko
core
Exploring the Governance–Disclosure Nexus: Board Structures and ESG Disclosures in South Africa
Business Strategy and the Environment, EarlyView.ABSTRACT This study examines how governance structures such as board composition and board functions influence environmental, social and governance (ESG) reporting among listed South African firms. This study examines 90 public listed companies on the Johannesburg Stock Exchange between 2012 and 2022.
Henriette Elsabe Scholtz +1 more
wiley +1 more source