Results 31 to 40 of about 55,209 (306)

Dichotomic Structure of DAEs Solutions for the Aircraft Control [PDF]

open access: yesINCAS Bulletin, 2009
The paper has its roots in earlier studies focused on DAEs solutions, for the aircraft flight control and intends to be a synthesis of them. The main goal is to structure the solution for the control laws so as to derive its components, which control any
Sorin Ştefan RADNEF
doaj   +1 more source

Desingularization of implicit analytic differential equations [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2006
The question of finding solutions to given implicit differential equations (IDE) has been answered by several authors in the last few years, using different approaches, in an algebraic and also a geometric setting. Many of those results assume in one way or another that the subimmersion theorem can be applied at several stages of the reduction ...
Cendra, Hernan   +2 more
openaire   +4 more sources

Linearized Implicit Numerical Method for Burgers’ Equation

open access: yesNonlinear Engineering, 2016
In this work, a novel numerical scheme based on method of lines (MOL) is proposed to solve the nonlinear time dependent Burgers’ equation. The Burgers’ equation is semi discretized in spatial direction by using MOL to yield system of nonlinear ordinary ...
Mukundan Vijitha, Awasthi Ashish
doaj   +1 more source

Solvability of Implicit Difference Equations

open access: yes, 2015
This article concerns sufficient conditions for the solvability of implicit difference equations. These are cast in a very general framework that relies on the α-covering and Lipschitz properties of the implicit recursive map with respect relatively to the first and second arguments.
Arutyunov A., Pereira F., Zhukovskiy S.
openaire   +3 more sources

Two new implicit numerical methods for the fractional cable equation

open access: yes, 2010
The cable equation is one of the most fundamental equations for modeling neuronal dynamics. Cable equations with fractional order temporal operators have been introduced to model electrotonic properties of spiny neuronal dendrites.
Qianqian Yang   +5 more
core   +1 more source

High resolution numerical algorithm of order (2, 4, 4) for 2D quasi-linear hyperbolic equations based on half-step discretization on an unequal grid

open access: yesPartial Differential Equations in Applied Mathematics, 2023
This study suggests a novel three-level implicit half-step scheme of order two and four in time and space direction respectively, utilizing an unequal grid for the approximation of 2D quasi-linear hyperbolic partial differential equations on an unequal ...
R.K. Mohanty, Bishnu Pada Ghosh
doaj   +1 more source

An implicit logarithmic finite-difference technique for two dimensional coupled viscous Burgers’ equation

open access: yesAIP Advances, 2013
This article describes a new implicit finite-difference method: an implicit logarithmic finite-difference method (I-LFDM), for the numerical solution of two dimensional time-dependent coupled viscous Burgers’ equation on the uniform grid points.
Vineet K. Srivastava   +2 more
doaj   +1 more source

A class of intrinsic parallel difference methods for time-space fractional Black–Scholes equation

open access: yesAdvances in Difference Equations, 2018
To quickly solve the fractional Black–Scholes (B–S) equation in the option pricing problems, in this paper, we construct pure alternative segment explicit–implicit (PASE-I) and pure alternative segment implicit–explicit (PASI-E) difference schemes for ...
Yue Li, Xiaozhong Yang, Shuzhen Sun
doaj   +1 more source

Difference numerical solutions for time-space fractional advection diffusion equation

open access: yesBoundary Value Problems, 2019
In this paper, a time-space fractional advection diffusion equation is considered for the natural extension of the convection diffusion equation. An explicit difference scheme and an implicit difference scheme are presented. The stability and convergence
Fangfang Zhang   +2 more
doaj   +1 more source

Explicit representation of the implicit Colebrook–White equation

open access: yesCase Studies in Thermal Engineering, 2015
It is shown that the Colebrook–White equation 1/λ=−2lg[2.51/Reλ+ϵ/3.71D] can be solved analytically for the friction factor λ. The solution contains two infinite sums.
P. Rollmann, K. Spindler
doaj   +1 more source

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