Results 71 to 80 of about 250,459 (212)

Sobolev gradients for differential algebraic equations

open access: yesElectronic Journal of Differential Equations, 2008
Sobolev gradients and weighted Sobolev gradients have been used for the solution of a variety of ordinary as well as partial differential equations. In the article at hand we apply this method to linear and non-linear ordinary differential algebraic ...
Manfred Sauter, Robin Nittka
doaj  

Piecewise continuous approach to nonlinear differential equations approximation problem of computational structural mechanics

open access: yesMATEC Web of Conferences, 2018
This paper presents a nonlinear differential equations system piecewise continuous approximation. The piecewise continuous approximation improves piecewise linear approximation through reducing the errors at the boundaries of different linear ...
Leibov Roman
doaj   +1 more source

An inverse problem for a nonlinear Fredholm integro-differential equation of fourth order with degenerate kernel

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2015
We consider the questions of one value solvability of the inverse problem for a nonlinear partial Fredholm type integro-differential equation of the fourth order with degenerate kernel. The method of degenerate kernel is developed for the case of inverse
Tursun K Yuldashev
doaj   +1 more source

Bézout’s theorem and algebraic differential equations [PDF]

open access: yesTransactions of the American Mathematical Society, 1943
Not ...
openaire   +1 more source

Universal Entanglement and an Information‐Complete Quantum Theory

open access: yesAdvanced Physics Research, EarlyView.
This Perspective summarize an informationcomplete quantum theory which describes a fully quantum world without any classical systems and concepts. Here spacetime/gravity, having to be a physical quantum system, universally entangles matter (matter fermions and their gauge fields) as an indivisible trinity, and encodes information‐complete physical ...
Zeng‐Bing Chen
wiley   +1 more source

Harmonic solutions to a class of differential-algebraic equations with separated variables

open access: yesElectronic Journal of Differential Equations, 2012
We study the properties of periodic solutions of a class of periodically perturbed Differential-Algebraic Equations with separated variables. Under suitable hypotheses, these equations are equivalent to separated variables ODEs on a manifold.
Luca Bisconti
doaj  

A Legendre Wavelet Spectral Collocation Method for Solving Oscillatory Initial Value Problems

open access: yesJournal of Applied Mathematics, 2013
In this paper, we propose an iterative spectral method for solving differential equations with initial values on large intervals. In the proposed method, we first extend the Legendre wavelet suitable for large intervals, and then the Legendre-Guass ...
A. Karimi Dizicheh   +3 more
doaj   +1 more source

Taylor collocation method for systems of high-order linear differential–difference equations with variable coefficients

open access: yesAin Shams Engineering Journal, 2013
A Taylor collocation method has been developed to solve the systems of high-order linear differential–difference equations in terms of the Taylor polynomials.
Elçin Gökmen, Mehmet Sezer
doaj   +1 more source

Quasi-generalized variables [PDF]

open access: yes
The numerical solution of a system of differential and algebraic equations is difficult, due to the appearance of numerical instabilities. A method is presented here which permits numerical solutions of such a system to be obtained which satisfy the ...
Baumgarten, J., Ostermeyer, G. P.
core   +1 more source

On integration of some classes of $(n+1)$ dimensional nonlinear Partial Differential Equations

open access: yes, 2003
The paper represents the method for construction of the families of particular solutions to some new classes of $(n+1)$ dimensional nonlinear Partial Differential Equations (PDE).
A. I. Zenchuk   +8 more
core   +1 more source

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