Results 101 to 110 of about 11,444 (271)

Existence and Stability Results for a Fractional Order Differential Equation with Non-Conjugate Riemann-Stieltjes Integro-Multipoint Boundary Conditions

open access: yesMathematics, 2019
We discuss the existence and uniqueness of solutions for a Caputo-type fractional order boundary value problem equipped with non-conjugate Riemann-Stieltjes integro-multipoint boundary conditions on an arbitrary domain.
Bashir Ahmad   +3 more
doaj   +1 more source

Hyers–Ulam stability for a nonlinear iterative equation [PDF]

open access: yesColloquium Mathematicum, 2002
Hyers-Ulam stability of the nonlinear iterative functional equation \(G(f^{n_1}(x), \dots, f^{n_k}(x)) =F(x)\) is considered. \(F\) is assumed to be given and \(f\) an unknown function. Both \(F\) and \(f\) are self-maps of \(I\), a subset of a Banach space; \(G:I^k\to I\), where, as usual, \(I^k=I\times \cdots\times I\), \(f^0(x)=x\), \(f^{i+1}(x) =f ...
Weinian Zhang, Bing Xu
openaire   +2 more sources

Weighted Weakly Singular Integral Inequalities: New Explicit Bounds and Applications in Fractional Dfferential Equations

open access: yesJournal of Mathematics, Volume 2025, Issue 1, 2025.
This study delves into the formulation of innovative integral inequalities, specifically designed to accommodate weakly singular singularities, thus significantly broadening the scope of previously established ones. The methodology employed centers around the application of weighted fractional differential equations, leading to the derivation of a ...
Salah Boulares   +5 more
wiley   +1 more source

Stability Results for Some Functional Equations on 2‐Banach Spaces With Restricted Domains

open access: yesJournal of Mathematics, Volume 2025, Issue 1, 2025.
We have a normed abelian group G,.∗,+ and a 2‐pre‐Hilbert space Y with linearly independent elements u and v. Our goal is to prove that any odd map f:G⟶Y satisfying the inequality ‖f(x) + f(y), z‖ ⩽ ‖f(x + y), z‖, z ∈ {u, v}, for all x,y∈G with ‖x‖∗ + ‖y‖∗ ≥ d and some d ≥ 0, is additive. Then, we examined the stability issue correlated with Cauchy and
M. R. Abdollahpour   +3 more
wiley   +1 more source

Hyers–Ulam Stability and Existence of Solutions for Differential Equations with Caputo–Fabrizio Fractional Derivative

open access: yesMathematics, 2019
In this paper, the Hyers–Ulam stability of linear Caputo–Fabrizio fractional differential equation is established using the Laplace transform method. We also derive a generalized Hyers–Ulam stability result via the Gronwall inequality.
Kui Liu   +3 more
semanticscholar   +1 more source

Hyers–Ulam stability of first-order linear differential equations using Aboodh transform

open access: yes, 2021
The main aim of this paper is to investigate various types of Ulam stability and Mittag-Leffler stability of linear differential equations of first order with constant coefficients using the Aboodh transform method.
R. Murali   +4 more
semanticscholar   +1 more source

The Approximation Property of a One-Dimensional, Time Independent Schrödinger Equation with a Hyperbolic Potential Well

open access: yesMathematics, 2020
A type of Hyers–Ulam stability of the one-dimensional, time independent Schrödinger equation was recently investigated; the relevant system had a parabolic potential wall.
Ginkyu Choi, Soon-Mo Jung
doaj   +1 more source

Common Fixed Point Theorems for Order Contractive Mappings on a σ‐Complete Vector Lattice

open access: yesJournal of Mathematics, Volume 2025, Issue 1, 2025.
In this paper, we prove some common fixed point theorems for order contractive mappings on a σ‐complete vector lattice. We apply new results to study the well‐posedness of a common fixed point problem for two contractive mappings. Our proofs are simple and purely order‐theoretic in nature.
Min Wang   +4 more
wiley   +1 more source

Hyers-Ulam stability of first-order non-linear delay differential equations with fractional integrable impulses

open access: yes, 2017
This paper proves the Hyers-Ulam stability and Hyers-Ulam-Rassias  stability of first-order non-linear delay differential equations with fractional integrable impulses.
A. Zada, Syed Omar Shah
semanticscholar   +1 more source

The coefficient multipliers on $ H^2 $ and $ \mathcal{D}^2 $ with Hyers–Ulam stability

open access: yesAIMS Mathematics
In this paper, we investigated the Hyers–Ulam stability of the coefficient multipliers on the Hardy space $ H^2 $ and the Dirichlet space $ \mathcal{D}^2 $.
Chun Wang
doaj   +1 more source

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