Results 21 to 30 of about 5,169,991 (290)

On a System of Difference Equations [PDF]

open access: yesDiscrete Dynamics in Nature and Society, 2013
We have investigated the periodical solutions of the system of rational difference equations , and where .
Ozkan, Ozan, Kurbanli, Abdullah Selcuk
openaire   +3 more sources

Parametrical identification of the special equation Ricatti on the basis of stochastic difference equations

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2008
Construction stochastic difference equations connecting results of supervision of instant values of dynamic processes described by special equation Ricatti, is considered.
A. S. Ovsienko   +1 more
doaj   +1 more source

Numerical solution of the Falkner-Skan equation using third-order and high-order-compact finite difference schemes [PDF]

open access: yes, 2011
We present a computational study of the solution of the Falkner-Skan equation (a third-order boundary value problem arising in boundary-layer theory) using high-order and high-order-compact finite differences schemes.
Galeano, Carlos   +5 more
core   +1 more source

Hexagonal vs. Rectilinear Grids for Explicit Finite Difference Schemes for the Two-dimensional Wave Equation [PDF]

open access: yes, 2013
Finite difference schemes for the 2-D wave equation operating on hexagonal grids and the accompanyingnumerical dispersion properties have received little attention in comparison to schemes operating on rectilinear grids.
Stefan Bilbao   +3 more
core   +1 more source

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

Modified finite-difference approximations near the singularitiy in the problem of motz [PDF]

open access: yes, 1976
A simple, modified finite-difference method is described for solving Laplace's equation with boundary singularities of the infinite derivative type. Modified approximations for the derivatives of the Laplacian equation are employed near the singularity ...
R. M. Furzel   +3 more
core   +4 more sources

The generalized hypergeometric difference equation

open access: yesDemonstratio Mathematica, 2018
A difference equation analogue of the generalized hypergeometric differential equation is defined, its contiguous relations are developed, and its relation to numerous well-known classical special functions are demonstrated.
Bohner Martin, Cuchta Tom
doaj   +1 more source

On a nonlinear second-order difference equation

open access: yesJournal of Inequalities and Applications, 2022
We study a nonlinear second-order difference equation which considerably extends some equations in the literature. Our main result shows that the difference equation is solvable in closed form. Some applications of the main result are also given.
Stevo Stević   +3 more
doaj   +1 more source

A Difference Equation Model of Infectious Disease [PDF]

open access: yesInternational Journal Bioautomation, 2022
In the context of so much uncertainty with coronavirus variants and official mandate based on seemingly exaggerated predictions of gloom from epidemiologists, it is appropriate to consider a revised model of relative simplicity, because there can be ...
Anthony Shannon   +3 more
doaj   +1 more source

On the Difference Equation xn+1=xnxn-k/(xn-k+1a+bxnxn-k)

open access: yesAbstract and Applied Analysis, 2012
We show that the difference equation xn+1=xnxn-k/xn-k+1(a+bxnxn-k),n∈ℕ0, where k∈ℕ, the parameters a, b and initial values x-i, i=0,k̅ are real numbers, can be solved in closed form considerably extending the results in the literature.
Stevo Stević   +3 more
doaj   +1 more source

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