Results 1 to 10 of about 47,314 (311)

Van der Pol model in two-delay differential equation representation [PDF]

open access: yesScientific Reports, 2022
The Van der Pol equation is the mathematical model of a second-order ordinary differential equation with cubic nonlinearity. Several studies have been adding time delay to the Van der Pol model. In this paper, the differential equation of the Van der Pol
M. A. Elfouly, M. A. Sohaly
doaj   +2 more sources

OSFESOR Code – The Delay Differential Equation Tool “Improving Delay Differential Equations Solver” [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2004
After having reviewed the RETARD code, which was originally written by Hairer & Wanner in 1995 with the aim of solving delay differential equations (DDEs), a new arithmetic called OSFESOR code is presented in this paper.
Riyadh Naoum   +2 more
doaj   +2 more sources

Ordinary and Delay Differential Equations. [PDF]

open access: greenThe American Mathematical Monthly, 1978
W. R. Utz, R. D. Driver
openalex   +3 more sources

Stability of the time-dependent identification problem for delay hyperbolic equations [PDF]

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2022
Time-dependent and space-dependent source identification problems for partial differential and difference equations take an important place in applied sciences and engineering, and have been studied by several authors.
A. Ashyralyev, B. Haso
doaj   +3 more sources

Ulam Stability of n-th Order Delay Integro-Differential Equations

open access: yesMathematics, 2021
In this paper, the Ulam stability of an n-th order delay integro-differential equation is given. Firstly, the existence and uniqueness theorem of a solution for the delay integro-differential equation is obtained using a Lipschitz condition and the ...
Shuyi Wang, Fanwei Meng
doaj   +1 more source

Lie symmetry analysis of fractional ordinary differential equation with neutral delay

open access: yesAIMS Mathematics, 2021
In this paper, Lie symmetry analysis method is employed to solve the fractional ordinary differential equation with neutral delay. The Lie symmetries for the fractional ordinary differential equation with neutral delay are obtained, and the group ...
Yuqiang Feng, Jicheng Yu
doaj   +1 more source

Exploring complicated behaviors of a delay differential equation

open access: yesMathematical Modelling and Control, 2023
Complicated behaviors of a delay differential equation are explored through the Euler discretization method. It rigorously shows that the corresponding discrete equation can be chaotic under some conditions, which reflects that there exist complicated ...
Zongcheng Li
doaj   +1 more source

IMPLEMENTASI DELAY DIFFERENTIAL EQUATION PADA SOLVER ORDINARY DIFFERENTIAL EQUATION MATLAB

open access: yesJUTI: Jurnal Ilmiah Teknologi Informasi, 2002
Ordinary Differential Equation (ODE) dan Delay Differential Equation (DDE) banyak digunakan untuk menerangkan kejadian-kejadian pada dunia nyata. ODE melibatkan derivatif yang dipengaruhi oleh penyelesaian waktu sekarang dari variabel-variabel yang tidak
Rully Soelaiman, Yudhi Purwananto
doaj   +1 more source

Pseudospectra and delay differential equations

open access: yesJournal of Computational and Applied Mathematics, 2006
AbstractIn this paper, we present a new method for computing the pseudospectra of delay differential equations (DDEs) with fixed finite delay. This provides information on the sensitivity of eigenvalues under arbitrary perturbations of a given size, and hence insight into how stability may change under variation of parameters.
Green, K, Wagenknecht, T
openaire   +4 more sources

Exact and Numerical Analysis of the Pantograph Delay Differential Equation via the Homotopy Perturbation Method

open access: yesMathematics, 2023
The delay differential equations are of great importance in real-life phenomena. A special type of these equations is the Pantograph delay differential equation.
Abdulrahman B. Albidah   +3 more
doaj   +1 more source

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