Results 21 to 30 of about 889,087 (322)

Stochastic Runge–Kutta methods for multi-dimensional Itô stochastic differential algebraic equations

open access: yesResults in Applied Mathematics, 2021
In this paper, we discuss the numerical solutions to index 1 stochastic differential algebraic equations. We introduce a new class of weak second-order stochastic Runge–Kutta methods for finding the numerical approximate solutions to multi-dimensional ...
Priya Nair, Anandaraman Rathinasamy
doaj   +1 more source

Numerical solutions for implicit differential equations with singularities

open access: yesSemina: Ciências Exatas e Tecnológicas, 2022
In this paper we introduce a technique to deal with implicit differential equations exhibiting singularities. Our approach is a geometrical one, we use the concept of contact structure on a manifold associated with the differential equation.
Antonio Castelo   +2 more
doaj   +1 more source

Solving Power System Differential Algebraic Equations Using Differential Transformation [PDF]

open access: yesIEEE Transactions on Power Systems, 2019
This paper proposes a novel non-iterative method to solve power system differential algebraic equations (DAEs) using the differential transformation, which is a mathematical tool able to obtain power series coefficients by transformation rules instead of
Yang Liu, K. Sun
semanticscholar   +1 more source

The Sine-Cosine Wavelet and Its Application in the Optimal Control of Nonlinear Systems with Constraint [PDF]

open access: yesJournal of Electrical and Computer Engineering Innovations, 2013
In this paper, an optimal control of quadratic performance index with nonlinear constrained is presented. The sine-cosine wavelet operational matrix of integration and product matrix are introduced and applied to reduce nonlinear differential equations ...
R. Hajmohammadi   +2 more
doaj   +1 more source

Development of technique of Backward integration step-by-step for solve stiff initial value problems

open access: yesTikrit Journal of Pure Science, 2023
Our purpose in this paper is the development of the  technique of backward integration step-by-step, In order to facilitating the use of this technique for  solving  the Stiff Problems.
Khalid A. M. Khalaf, Bashir M. S. Khalaf
doaj   +1 more source

A Numerical Method for a System of Fractional Differential-Algebraic Equations Based on Sliding Mode Control

open access: yesMathematics, 2020
Fractional calculus is widely used in engineering fields. In complex mechanical systems, multi-body dynamics can be modelled by fractional differential-algebraic equations when considering the fractional constitutive relations of some materials.
Yongpeng Tai   +4 more
doaj   +1 more source

Asymptotic solutions of boundary value problem for singularly perturbed system of differential-algebraic equations

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2022
This paper deals with the boundary value problem for a singularly perturbed system of differential algebraic equations of the second order. The case of simple roots of the characteristic equation is studied.
P.F. Samusenko, M.B. Vira
doaj   +1 more source

Analytical and approximate solutions of Fractional Partial Differential-Algebraic Equations

open access: yes, 2020
In this paper, we have extended the Fractional Differential Transform method for the numerical solution of the system of fractional partial differential-algebraic equations.
H. Günerhan, E. Çelik
semanticscholar   +1 more source

An implicit system of delay differential algebraic equations from hydrodynamics

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2023
Direct spring operated pressure relief valves connected to a constantly charged vessel and a downstream pipe have a complex dynamics. The vessel-valve subsystem is described with an autonomous system of ordinary differential equations, while the presence
Fanni Kádár, Gábor Stépán
doaj   +1 more source

A Numerical Method using Collocation Approach for the Solution of Volterra-Fredholm Integro-Differential Equations

open access: yesAfrican Scientific Reports, 2022
This paper consider collocation approach for the numerical solution of Volterra-Fredholm Integro-differential equation using collocation method. We transformed the problem into a system of linear algebraic equations and matrix inversion is adopted to ...
G. Ajileye, F. A. Aminu
doaj   +1 more source

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