Results 91 to 100 of about 7,129 (263)

Agricultural Diversification at the Margin. Strategies and Determinants in Italian Mountain and Remote Areas

Agribusiness, EarlyView.
ABSTRACT This paper explores the convergence in on‐farm diversification strategies of agricultural holdings, between remote areas and more central ones. Using Italian farm‐level data, we explore the determinants of diversification strategies across farms.
Gianluca Grilli, Francesco Pagliacci, Paola Gatto   +2 more
wiley   +1 more source

Majorization Inequalities for n-Convex Functions with Applications to 3-Convex Functions

Mathematics
In this paper, we study majorization-type inequalities for n-convex (specifically 3-convex) functions. Numerous papers deal with such integral inequalities, in which n-convex functions are defined on compact intervals and nonnegative measures are used in
László Horváth
doaj   +1 more source

Weak majorization inequalities and convex functions

Linear Algebra and its Applications, 2003
Let \(f\) be a convex function defined on an interval \(I\), \(0\leq \alpha \leq 1\), and \(A\), \(B\) be \(n\times n\) complex Hermitian matrices with spectrum in \(I\). The authors prove that the eigenvalues of \(f(\alpha A+(1-\alpha)B)\) are weakly majorized by the eigenvalues of \(\alpha f(A)+(1-\alpha)f(B)\).
Aujla, Jaspal Singh, Silva, Fernando C.
openaire   +1 more source

Food Tastes in the United States: Convergence or Divergence?

Agribusiness, EarlyView.
ABSTRACT This study investigates how food consumption tastes have changed in recent decades across the United States. Using NielsenIQ data for over 77 million transactions, there is evidence of divergence in food tastes across regions from 2007 to 2016 and across households of different income, education, and race/ethnicity groups.
Michael DeDad
wiley   +1 more source

The Power of Unity: Collective Action and Smallholder Agricultural Performance in West Africa

Agribusiness, EarlyView.
ABSTRACT We analyze the impact of collective action through farmer‐based organizations (FBOs) on smallholders' farm performance and income inequality in Ghana, Benin, The Gambia, and Mali. We find that FBO membership increases cereal yield in Ghana and The Gambia, legume yield in Mali, ruminant numbers in Benin and The Gambia, and total farm income in ...
Emmanuel Donkor, Bright Owusu Asante, David Boansi, Victor Owusu   +3 more
wiley   +1 more source

Majorization and refinements of Hermite-Hadamard inequality [PDF]

Mathematical Inequalities & Applications, 2020
Summary: In this note we use majorization methods to derive and analyze refinements of Hermite-Hadamard inequality for a convex function.
openaire   +2 more sources

The Role of Certifications in Improving Household Food Security Among Peruvian Farmers

Agribusiness, EarlyView.
ABSTRACT Achieving global food security requires sustainable transformations in agri‐food systems. Voluntary Sustainability Standards (VSS) such as Organic and Fairtrade aim to internalize certain social and environmental costs while promoting more equitable value distribution, improved market access, and sustainable production practices.
Lisa‐Marie Schulte, Awudu Abdulai
wiley   +1 more source

Some properties of convex and $*$-concave multifunctions

Annales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2006
We investigate some properties of {$*$}-concave and convex multifunctions on the real line with convex bounded closed values. In particularly we consider the Hadamard inequality and the Hardy--Little-wood--P'olya majorization theory in the case of ...
Bożena Piątek
doaj  

Real‐Time Sampling‐Based Model Predictive Control Based on Reverse Kullback–Leibler Divergence and Its Adaptive Acceleration

Advanced Intelligent Systems, EarlyView.
This study presents a new sampling‐based model predictive control minimizing reverse Kullback‐Leibler divergence to quickly find a local optimum. In addition, a modified Nesterov's acceleration method is introduced for faster convergence. The method is effective for real‐time simulations and real‐world operability improvement on a force‐driven mobile ...
Taisuke Kobayashi, Kota Fukumoto
wiley   +1 more source

Fractional Integral Estimates of Boole Type: Majorization and Convex Function Approach with Applications

Fractal and Fractional
The goal of this paper is to use a Boole-type inequality framework to provide better estimates for differentiable functions. Using majorization theory, fractional integral operators are incorporated into a new auxiliary identity.
Saad Ihsan Butt, Mohammed Alammar, Youngsoo Seol   +2 more
doaj   +1 more source