Results 51 to 60 of about 1,494 (161)

Hyers–Ulam Stability of a System of Hyperbolic Partial Differential Equations

open access: yesMathematics, 2022
In this paper, we study Hyers–Ulam and generalized Hyers–Ulam–Rassias stability of a system of hyperbolic partial differential equations using Gronwall’s lemma and Perov’s theorem.
Daniela Marian   +2 more
doaj   +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

Ulam-Hyers stability for partial differential inclusions

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2012
Summary: Using the weakly Picard operator technique, we will present Ulam-Hyers stability results for integral inclusions of Fredholm and Volterra type and for the Darboux problem associated to a partial differential inclusion.
openaire   +2 more sources

Mittag-Leffler-Hyers-Ulam stability for a first- and second-order nonlinear differential equations using Fourier transform

open access: yesDemonstratio Mathematica
In this article, we apply the Fourier transform to prove the Hyers-Ulam and Hyers-Ulam-Rassias stability for the first- and second-order nonlinear differential equations with initial conditions.
Selvam Arunachalam   +2 more
doaj   +1 more source

Ulam‐Hyers Stability for Cauchy Fractional Differential Equation in the Unit Disk [PDF]

open access: yesAbstract and Applied Analysis, 2012
We prove the Ulam‐Hyers stability of Cauchy fractional differential equations in the unit disk for the linear and non‐linear cases. The fractional operators are taken in sense of Srivastava‐Owa operators.
openaire   +4 more sources

Existence and Stability of Ulam–Hyers for Neutral Stochastic Functional Differential Equations

open access: yesBulletin of the Iranian Mathematical Society, 2023
AbstractThe primary aim of this paper is to focus on the stability analysis of an advanced neural stochastic functional differential equation with finite delay driven by a fractional Brownian motion in a Hilbert space. We examine the existence and uniqueness of mild solution of $$ {\textrm{d}}\left[ {x}_{a}(s) + {\mathfrak {g}}(s, {x}_{a}(s - \omega (s)
Arunachalam Selvam   +3 more
openaire   +2 more sources

Nonlinear analysis for Hilfer fractional differential equations

open access: yesFranklin Open
In this paper, we discuss nonlinear Hilfer fractional differential equations with separated boundary conditions. Using the well-known Leggett–Williams theorem, we first explore the existence of multiple positive solutions for the nonlinear Hilfer ...
Debananda Basua, Swaroop Nandan Bora
doaj   +1 more source

Some Generalizations of Ulam‐Hyers Stability Functional Equations to Riesz Algebras [PDF]

open access: yesAbstract and Applied Analysis, 2012
Badora (2002) proved the following stability result. Let ε and δ be nonnegative real numbers, then for every mapping f of a ring ℛ onto a Banach algebra ℬ satisfying | | f(x + y) − f(x) − f(y)|| ≤ ε and | | f(x · y) − f(x)f(y)|| ≤ δ for all x, y ∈ ℛ, there exists a unique ring homomorphism h : ℛ → ℬ such that | | f(x) − h(x)|| ≤ ε, x ∈ ℛ. Moreover, b ·
openaire   +4 more sources

Existence and stability of mixed type Hilfer fractional differential equations with impulses and time delay

open access: yesResults in Applied Mathematics
In this paper, we consider a class of mixed type Hilfer fractional differential equations with noninstantaneous impulses, nonlocal conditions and time delay.
Baoyan Han, Bo Zhu
doaj   +1 more source

Stability analysis of implicit fractional differential equations with anti-periodic integral boundary value problem

open access: yesAnnales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2019
In this manuscript, we study the existence, uniqueness and various kinds of Ulam stability including Ulam-Hyers stability, generalized Ulam-Hyers stability, Ulam-Hyers-Rassias stability, and generalized Ulam-Hyers-Rassias stability of the solution to an ...
Akbar Zada, Hira Waheed
doaj  

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