Results 81 to 90 of about 921,412 (275)

Selberg’s Inequality and Selberg Operator Bounds in Hilbert Spaces with Applications

Axioms
In the present work, we give a new proof of the well-known Selberg’s inequality in complex Hilbert spaces from an operator-theoretic perspective, establishing its fundamental equivalence with the Cauchy–Bunyakovsky–Schwarz inequality.
Salma Aljawi, Cristian Conde, Silvestru Sever Dragomir, Kais Feki   +3 more
doaj   +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

Multigrid method for noncoercive parabolic variational inequality

Journal of Inequalities and Applications
In this article, our work is focused on the proof of the uniform convergence of the multigrid method for parabolic variational inequality with a noncoercive operator and its numerical solution.
Mostafa Bahi, Mohammed Beggas, Mohamed Haiour, Salah Boulaaras   +3 more
doaj   +1 more source

Some Operator Inequalities on Chaotic Order and Monotonicity of Related Operator Function

Abstract and Applied Analysis, 2013
We will discuss some operator inequalities on chaotic order about several operators, which are generalization of Furuta inequality and show monotonicity of related Furuta type operator function.
Changsen Yang, Yanmin Liu
doaj   +1 more source

Estimates of Fractional Integral Operators on Variable Exponent Lebesgue Spaces

Journal of Function Spaces, 2016
By some estimates for the variable fractional maximal operator, the authors prove that the fractional integral operator is bounded and satisfies the weak-type inequality on variable exponent Lebesgue spaces.
Canqin Tang, Qing Wu, Jingshi Xu
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   +2 more sources

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

REGIONAL DIFFERENCES IN THE CONTRIBUTION OF OFF-FARM WORK TO INCOME INEQUALITY [PDF]

This paper uses the concept of the Gini Coefficient and data from the 1991 Farm Costs and Returns Survey (FCRS) to measure the role of off-farm income and that of other income sources in the size distribution of farm operator households' total personal ...
El-Osta, Hisham S., Bernat, G. Andrew, Jr., Ahearn, Mary Clare   +2 more
core  

Do More Open Economies Export Less Diversely in Brazilian Agribusiness?

Agribusiness, EarlyView.
ABSTRACT This paper asks whether municipalities with a larger export‐to‐revenue ratio display a more concentrated bundle of exported goods in Brazilian agribusiness. Recent advances in export imputation for Brazilian municipalities allow for an analysis of the concentration profile of each municipality and its association with export openness.
Alan Leal, Michelle Marcia Viana Martins
wiley   +1 more source

Operator Arithmetic-Harmonic Mean Inequality on Krein Spaces

Journal of Mathematical Extension, 2014
We prove an operator arithmetic-harmonic mean type inequality in Krein space setting, by using some block matrix techniques of indefinite type. We also give an example which shows that the operator arithmetic-geometric-harmonic mean inequality for two
M. Dehghani, S. M. S. Modarres Mosadegh
doaj