Results 31 to 40 of about 4,153,672 (273)

Two ways for solving a class of rational second-order difference equations

open access: yesAdvances in Difference Equations, 2019
We consider a class of second-order rational difference equations with two parameters, and we show, in two ways, that the class of equations is solvable in closed form. One way is based on using an invariant for the class of equations, whereas the second
Stevo Stević
doaj   +1 more source

Note on theoretical and practical solvability of a class of discrete equations generalizing the hyperbolic-cotangent class

open access: yesJournal of Inequalities and Applications, 2021
There has been some recent interest in investigating the hyperbolic-cotangent types of difference equations and systems of difference equations. Among other things their solvability has been studied.
Stevo Stević   +3 more
doaj   +1 more source

Bifurcation Analysis and Numerical Study of Wave Solution for Initial-Boundary Value Problem of the KdV-BBM Equation

open access: yesMathematics, 2022
In this work, we study the bifurcation and the numerical analysis of the nonlinear Benjamin-Bona-Mahony-KdV equation. According to the bifurcation theory of a dynamic system, the various kinds of traveling wave profiles are obtained including the ...
Teeranush Suebcharoen   +2 more
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

Mathematical modeling and computation of a dam–reservoir system balancing environmental management and hydropower generation

open access: yesEnergy Reports, 2020
We propose a simple but non-trivial mathematical model of a dam–reservoir system balancing between the downstream environmental management and hydropower production.
Hidekazu Yoshioka
doaj   +1 more source

Global stability of a class of difference equations on solvable Lie algebras [PDF]

open access: yesMathematics of Control, Signals, and Systems, 2020
Motivated by the ubiquitous sampled-data setup in applied control, we examine the stability of a class of difference equations that arises by sampling a right- or left-invariant flow on a matrix Lie group. The map defining such a difference equation has three key properties that facilitate our analysis: 1) its power series expansion enjoys a type of ...
Philip James McCarthy   +1 more
openaire   +4 more sources

Fast computation of the nonlocal boundary condition in finite difference parabolic equation radiowave propagation simulations [PDF]

open access: yes, 2008
Finite difference parabolic equation method (FD-PEM) codes using a nonlocal boundary condition to model radiowave propagation over electrically large domains, require the computation of time consuming spatial convolution integrals. For the first time, we
Mias, Christos
core   +1 more source

ON THE DIFFERENCE EQUATION ASSOCIATED WITH THE DOUBLY PERIODIC GROUP AND ITS APPLICATIONS

open access: yesПроблемы анализа, 2020
Let D be a rectangle. We consider a four-element linear difference equation defined on D. The shifts of this equation are the generating transformations of the corresponding doubly periodic group and their inverse transformations.
F. N. Garif’yanov, E. V. Strezhneva
doaj   +1 more source

Note on the binomial partial difference equation

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
Some formulas for the "general solution" to the binomial partial difference equation $$c_{m,n}=c_{m-1,n}+c_{m-1,n-1},$$ are known in the literature. However, it seems that there is no such a formula on the most natural domain connected to the equation ...
Stevo Stevic
doaj   +1 more source

Qualitative stability and solvability of difference equations [PDF]

open access: yesLinear and Multilinear Algebra, 1991
We develop sufficient conditions for qualitative stability and solvability of the real discrete time system xt+ 1 = Axi + b. These conditions are a combination of qualitative and quantitative criteria and depend on signed digraphs.
Clark Jeffries, P. van den Driessche
openaire   +1 more source

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