Results 71 to 80 of about 6,753 (236)

Approximate Homomorphisms of Ternary Semigroups

, 2005
A mapping $f:(G_1,[ ]_1)\to (G_2,[ ]_2)$ between ternary semigroups will be called a ternary homomorphism if $f([xyz]_1)=[f(x)f(y)f(z)]_2$. In this paper, we prove the generalized Hyers--Ulam--Rassias stability of mappings of commutative semigroups into ...
A. Cayley, C. Baak, D.H. Hyers, D.H. Hyers, G.L. Forti, J. Baker, J. Sylvester, L. Székelyhidi, L. Takhtajan, L. Vainerman, M. Amyari, M. Kapranov, M. S. Moslehian, M.S. Moslehian, N. Bazunova, P. Găvruta, R. Kerner, S.A. Rusakov, S.M. Ulam, Th.M. Rassias, Th.M. Rassias, V. Abramov, Y.L. Daletskii   +22 more
core   +2 more sources

Behavioral Cobweb Dynamics With Anticipatory Inventory and Ulam Stability: An Integro‐Differential Approach

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This paper proposes a novel extension of the classical cobweb price model by incorporating behavioral inventory responses through an anticipatory mini‐storage mechanism. In many real‐world commodity markets, persistent price oscillations occur even when classical stability conditions are theoretically satisfied, an inconsistency traditional ...
M. Anokye, A. L. Sackitey, Agnes Adom‐Konadu, Samuel E. Assabil, Luca Guerrini, M. F. Ofori, Massimiliano Ferrara   +6 more
wiley   +1 more source

Study of a nonlinear multi-terms boundary value problem of fractional pantograph differential equations

Advances in Difference Equations, 2021
In this research work, a class of multi-term fractional pantograph differential equations (FODEs) subject to antiperiodic boundary conditions (APBCs) is considered.
Muhammad Bahar Ali Khan, Thabet Abdeljawad, Kamal Shah, Gohar Ali, Hasib Khan, Aziz Khan   +5 more
doaj   +1 more source

Hyers-Ulam-Rassias Stability of Functional Equations with Integrals in B-Metric Frameworks

Symmetry
This study investigates the stability behavior of nonlinear Fredholm and Volterra integral equations, as well as nonlinear integro-differential equations with Volterra integral terms, through the lens of symmetry principles in mathematical analysis.
Jagjeet Jakhar, Shalu Sharma, Jyotsana Jakhar, M. Yousif, P. Mohammed, Nejmeddine Chorfi, M. Vivas-Cortez   +6 more
semanticscholar   +1 more source

Smart Mosquito‐Nets: A Natural Approach to Controlling Malaria Using Larvicidal Plant Extracts and Internet of Things

Engineering Reports, Volume 7, Issue 9, September 2025.
Smart malaria control using larvicidal plant extracts and mosquito nets. With the model, sensor nodes can be installed to collect environmental data that enhances the breeding of mosquitoes and the timing of malaria‐treated mosquito nets. Data collected can be processed using artificial intelligence for decision‐ and policy‐making.
Juliet Onyinye Nwigwe, Kennedy Chinedu Okafor, Ogonna Christiana Ani, Titus Ifeanyi Chinebu, Okafor Ijeoma Peace, Omowunmi Mary Longe, Kelvin Anoh   +6 more
wiley   +1 more source

A generalization of the Hyers–Ulam–Rassias stability of the Pexiderized quadratic equations

Journal of Mathematical Analysis and Applications, 2004
Two Pexiderized versions of the quadratic functional equation are considered: \[ \begin{aligned} f(x\ast y)+f(x\ast y^{-1})&=2g(x)+2g(y),\\ f(x\ast y)+g(x\ast y^{-1})&=2h(x)+2k(y), \end{aligned} \] where \(f,g,h,k\) are functions mapping a group \((G,\ast)\) into a~real or complex topological vector space~\(X\).
Jun, Kil-Woung, Lee, Yang-Hi
openaire   +2 more sources

On the Orthogonal Stability of the Pexiderized Quadratic Equation

, 2005
The Hyers--Ulam stability of the conditional quadratic functional equation of Pexider type f(x+y)+f(x-y)=2g(x)+2h(y), x\perp y is established where \perp is a symmetric orthogonality in the sense of Ratz and f is odd.Comment: 10 pages, Latex; Changed ...
Aczél J., Aczél J., Czerwik S., Czerwik S., Drljević F., Ger R., Hyers D.H., Jun K.W., Jung S.M., Mohammad Sal Moslehian, Moslehian M.S., Rassias Th.M., Vajzović F.   +12 more
core   +2 more sources

Hyers-Ulam and Hyers-Ulam-Rassias stability of first-order linear dynamic equations

Publications de l'Institut Math?matique (Belgrade), 2021
We present several new sufficient conditions for Hyers-Ulam and Hyers-Ulam-Rassias stability of first-order linear dynamic equations for functions defined on a time scale with values in a Banach space.
M. Alghamdi, Alaa Aljehani, M. Bohner, A. Hamza   +3 more
semanticscholar   +1 more source

The Impact of Memory Effects on Lymphatic Filariasis Transmission Using Incidence Data From Ghana

Engineering Reports, Volume 7, Issue 7, July 2025.
Modeling Lymphatic Filariasis by incorporating disease awareness through fractional derivative operators. ABSTRACT Lymphatic filariasis is a neglected tropical disease caused by a parasitic worm transmitted to humans by a mosquito bite. In this study, a mathematical model is developed using the Caputo fractional operator.
Fredrick A. Wireko, Rebecca Awerigiya, Isaac K. Adu, Joshua N. Martey, Bernard O. Bainson, Joshua Kiddy K. Asamoah   +5 more
wiley   +1 more source

Continuous Dependence on the Initial Functions and Stability Properties in Hyers–Ulam–Rassias Sense for Neutral Fractional Systems with Distributed Delays

Fractal and Fractional, 2023
We study several stability properties on a finite or infinite interval of inhomogeneous linear neutral fractional systems with distributed delays and Caputo-type derivatives.
Hristo Kiskinov, Mariyan Milev, Magdalena Veselinova, Andrey Zahariev   +3 more
doaj   +1 more source