Results 51 to 60 of about 610,482 (163)

On the Hyers-Ulam Stability of Differential Equations of Second Order

open access: yesAbstract and Applied Analysis, 2014
By using of the Gronwall inequality, we prove the Hyers-Ulam stability of differential equations of second order with initial conditions.
Qusuay H. Alqifiary, Soon-Mo Jung
doaj   +1 more source

A new approach to interval-valued inequalities

open access: yesAdvances in Difference Equations, 2020
The objective of this work is to advance and simplify the notion of Gronwall’s inequality. By using an efficient partial order and concept of gH-differentiability on interval-valued functions, we investigate some new variants of Gronwall type ...
Awais Younus   +4 more
doaj   +1 more source

Concept and application of interval-valued fractional conformable calculus

open access: yesAlexandria Engineering Journal, 2022
This paper introduces a new concept of Caputo type interval-valued fractional conformable calculus. Based on this, some theorems and properties related to fractional conformable calculus are presented.
Lihong Zhang   +3 more
doaj   +1 more source

On a Stieltjes version of Gronwall’s inequality [PDF]

open access: yesProceedings of the American Mathematical Society, 1981
A unified formulation of Gronwall’s inequality ( GI ) ({\text {GI}}) for certain Stieltjes integrals is presented. An advantage in using Stieltjes integrals lies in the fact that some of the "continuous" and "discrete" versions of the inequality may be obtained as a consequence of the same ...
openaire   +2 more sources

Impact of Uncertain Parameters on Navier–Stokes Equations With Heat Transfer via Polynomial Chaos Expansion

open access: yesInternational Journal for Numerical Methods in Fluids, EarlyView.
This study investigates the impact of uncertain parameters on Navier–Stokes equations coupled with heat transfer using the Intrusive Polynomial Chaos Method (IPCM). Sensitivity equations are formulated for key input parameters, such as viscosity and thermal diffusivity, and solved numerically using the Finite Element‐Volume method.
N. Nouaime   +3 more
wiley   +1 more source

Analysis of L1-difference methods for time-fractional nonlinear parabolic problems with delay [PDF]

open access: yes, 2017
This work is concerned with numerical solutions of time-fractional nonlinear parabolic problems by a class of L1-difference methods. The analysis of L1 methods for timefractional nonlinear problems with delay is limited mainly due to the lack of a ...
De Staelen, Rob, Hendy, Ahmed S.
core   +1 more source

On Gronwall and Wendroff type inequalities [PDF]

open access: yesProceedings of the American Mathematical Society, 1983
It is shown how Gronwall’s Lemma and the extension to many variables given by W. Walter may be derived using the simple method of recursion. This same method is used to extend this result and to derive a more general Wendroff type inequality. Upper and lower bounds for the Neumann series in the case of two independent variables are given.
openaire   +1 more source

A highly accurate numerical method for solving boundary value problem of generalized Bagley‐Torvik equation

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
A highly accurate numerical method is given for the solution of boundary value problem of generalized Bagley‐Torvik (BgT) equation with Caputo derivative of order 0<β<2$$ 0<\beta <2 $$ by using the collocation‐shooting method (C‐SM). The collocation solution is constructed in the space Sm+1(1)$$ {S}_{m+1}^{(1)} $$ as piecewise polynomials of degree at ...
Suzan Cival Buranay   +2 more
wiley   +1 more source

Well-posedness of time-fractional, advection-diffusion-reaction equations

open access: yes, 2019
We establish the well-posedness of an initial-boundary value problem for a general class of time-fractional, advection-diffusion-reaction equations, allowing space- and time-dependent coefficients as well as initial data that may have low regularity. Our
Ali, Raed   +3 more
core   +1 more source

Gronwall inequalities via Picard operators

open access: yesAnnals of the Alexandru Ioan Cuza University - Mathematics, 2012
Let \(A\) be an operator on an ordered set \(X\) such that the equation \(A(x)=x\) has a unique solution \(x^\ast\). The second author raised the following problem in his study of Picard operators [Sci. Math. Jpn. 58, No. 1, 191--219 (2003; Zbl 1031.47035)]: Find the conditions under which \(x\leq A(x)\), respectively \(x\geq A(x)\), implies that \(x ...
Lungu, Nicolaie, Rus, Ioan A.
openaire   +1 more source

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