Results 71 to 80 of about 1,172,620 (153)

The Architecture of Consolidation: Nests of Corporate Control in the Agrochemical Network

open access: yesJournal of Agrarian Change, Volume 26, Issue 4, October 2026.
ABSTRACT Research on agricultural consolidation tends to equate corporate control with the dominance of a few large firms. We take an alternative approach that examines control through the explosive growth of legally distinct firms that fragment accountability. Using a new global dataset of 6982 entities linked to BASF, Bayer, Corteva, Dow, DuPont, FMC,
Loka Ashwood   +5 more
wiley   +1 more source

The inequalities of W. Sierpinski and Ky Fan

open access: yesJournal of Mathematical Analysis and Applications, 1990
Durch ``einschieben'' einer Funktion zwischen den zwei Seiten bekannter Ungleichungen (die dann Werte oder Grenzwerte dieser Funktion sind), verschärfen und verallgemeinern die Verff. in verschiedenen Richtungen eine überraschend große Anzahl von Ungleichungen, z.B. die von Sierpiński und Ky Fan. Die Methode geht auf \textit{D. K. Callebaut} [J.
Alzer, Horst   +2 more
openaire   +1 more source

On Some Inequalities of Ky Fan and Wang-Wang

open access: yesJournal of Mathematical Analysis and Applications, 1993
The main result of the paper states the following inequality: \[ H_ n\leq {n+\sum b_ i\over n+\sum 1/b_ i}\leq G_ n\leq {\sum b_ i/(1+ b_ i)\over \sum 1/(1+ b_ i)}\leq A_ n, \] where \(0< b_ i\leq 1\) and \(A_ n\), \(G_ n\), \(H_ n\) denote the arithmetic, geometric, and harmonic mean, respectively, of the numbers \(b_ 1,\dots,b_ n\).
openaire   +2 more sources

Separability Criteria Based on the Weyl Operators. [PDF]

open access: yesEntropy (Basel), 2022
Huang X, Zhang T, Zhao MJ, Jing N.
europepmc   +1 more source

SOME GENERALIZED KY FAN’S INEQUALITIES

open access: yesTaiwanese Journal of Mathematics, 2009
In this paper, we generalize Ky Fan’s minimax inequality to vectorvalued function with values in a topological vector space acting on the product of two other topological vector spaces which are connected by another function. In these results, the concavity or convexity on a function is transferred to another function.
Tang, Gu-Sheng   +2 more
openaire   +2 more sources

Weyl's Law for the Steklov Problem on Surfaces with Rough Boundary. [PDF]

open access: yesArch Ration Mech Anal, 2023
Karpukhin M, Lagacé J, Polterovich I.
europepmc   +1 more source

On Ky Fan's Inequality and Its Additive Analogue

open access: yesJournal of Mathematical Analysis and Applications, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Generalized Equilibrium Problems Related to Ky Fan Inequalities [PDF]

open access: yesAbstract and Applied Analysis, 2014
We study a generalized equilibrium problem by using a nonsymmetric extension of Ky Fan’s inequality. As an application, we present a fixed point type algorithm inspired by a model from Tada and Takahashi (2007).
openaire   +4 more sources

Device-independent quantum randomness-enhanced zero-knowledge proof. [PDF]

open access: yesProc Natl Acad Sci U S A, 2023
Li CL   +17 more
europepmc   +1 more source

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