Results 51 to 60 of about 4,516,797 (266)

A Fixed Point Approach to the Stability of a Cauchy-Jensen Functional Equation

open access: yes, 2020
We find out the general solution of a generalized Cauchy-Jensen functional equation and prove its stability. In fact, we investigate the existence of a Cauchy-Jensen mapping related to the generalized Cauchy-Jensen functional equation and prove its ...
Won-Gil Park, Jae-Hyeong Bae
core  

Food insecurity and unemployment among immigrants in the United States

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Immigrants can be more vulnerable to economic downturns and, during periods of economic hardship, more likely to experience food insecurity compared to natives. This study examines the differential effect of the unemployment rate on the probability of being food insecure among diverse groups of immigrant households relative to natives in the ...
Siwen Zhou   +3 more
wiley   +1 more source

Stability and Superstability of Ring Homomorphisms on Non-Archimedean Banach Algebras

open access: yesAbstract and Applied Analysis, 2011
Using fixed point methods, we prove the superstability and generalized Hyers-Ulam stability of ring homomorphisms on non-Archimedean Banach algebras. Moreover, we investigate the superstability of ring homomorphisms in non-Archimedean Banach algebras ...
M. Eshaghi Gordji, Z. Alizadeh
doaj   +1 more source

Kestabilan persamaan fungsional Jensen [PDF]

open access: yes, 2015
INDONESIA: Persamaan fungsional Jensen merupakan salah satu variasi dari persamaan fungsional Cauchy additive. Suatu persamaan fungsional dapat diaplikasikan sebagai model dari suatu proses fisik ketika persamaan fungsional tersebut stabil.
Nisa’, Hilwin
core  

Isomorphisms and Derivations in Lie C*-Algebras

open access: yesAbstract and Applied Analysis, 2007
We investigate isomorphisms between C*-algebras, Lie C*-algebras, and JC*-algebras, and derivations on C*-algebras, Lie C*-algebras, and JC*-algebras associated with the Cauchy–Jensen functional equation 2f((x+y/2)+z)=f(x)+f(y)+2f(z).
Choonkil Park, Jong Su An, Jianlian Cui
doaj   +1 more source

Approximate multi-variable bi-Jensen-type mappings

open access: yesDemonstratio Mathematica, 2023
In this study, we obtained the stability of the multi-variable bi-Jensen-type functional equation: n2fx1+⋯+xnn,y1+⋯+ynn=∑i=1n∑j=1nf(xi,yj).{n}^{2}f\left(\frac{{x}_{1}+\cdots +{x}_{n}}{n},\frac{{y}_{1}+\cdots +{y}_{n}}{n}\right)=\mathop{\sum }\limits_{i=1}
Bae Jae-Hyeong, Park Won-Gil
doaj   +1 more source

Hyers–Ulam stability and hyperstability of a Jensen-type functional equation on 2-Banach spaces

open access: yesJournal of Inequalities and Applications, 2022
The main aim of this paper is to establish the Hyers–Ulam stability and hyperstability of a Jensen-type quadratic mapping in 2-Banach spaces. That is, we prove the various types of Hyers–Ulam stability and hyperstability of the Jensen-type quadratic ...
Arumugam Ponmana Selvan, Abbas Najati
doaj   +1 more source

Comparative cranial biomechanics reveal macroevolutionary trends in theropod dinosaurs, with emphasis on Tyrannosauroidea

open access: yesThe Anatomical Record, EarlyView.
Abstract Tyrannosaurus is viewed as a model organism in vertebrate paleontology, with numerous studies analyzing its feeding biomechanics. Nonetheless, the evolution of this feeding performance has been under‐addressed in Tyrannosauroidea, especially in basal tyrannosauroids. Here we used muscle‐force reconstruction and finite element analysis (FEA) to
Evan Johnson‐Ransom   +4 more
wiley   +1 more source

JENSEN'S FUNCTIONAL EQUATION IN MULTI-NORMED SPACES

open access: yesTaiwanese Journal of Mathematics, 2010
Let \(E\) be a linear space and let \((F^n,\|\cdot\|_{n})_{n\in\mathbb{N}}\) be a multi-Banach space. In such a setting, the Hyers-Ulam stability of Jensen's functional equation is proved. Suppose that a mapping \(f: E\to F\) is an approximate solution of Jensen's equation, i.e., \(f(0)=0\) and, with some \(\alpha\geq 0\), \[ \sup_{k\in\mathbb{N ...
Moslehian, M. S., Srivastava, H. M.
openaire   +2 more sources

STABILITY OF THE JENSEN FUNCTIONAL EQUATION IN FUZZY BANACH ALGEBRAS [PDF]

open access: yesKorean Journal of Mathematics, 2012
Summary: In this paper, we prove the Hyers-Ulam stability of the Jensen functional equation in fuzzy Banach algebras by using fixed point method and by using direct method.
Lee, Jung Rye, Shin, Dong Yun
openaire   +2 more sources

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