Results 11 to 20 of about 17,758,657 (325)

Asymptotic iteration method for solving Hahn difference equations. [PDF]

open access: yesAdv Differ Equ, 2021
Hahn’s difference operator Dq;wf(x)=(f(qx + w) – f(x))/((q – 1)x + w), q ∈ (0, 1), w > 0, x = w/(1 – q) is used to unify the recently established difference and q-asymptotic iteration methods (DAIM, qAIM).
MacQuarrie L, Saad N, Islam MS.
europepmc   +2 more sources

Higher-order finite-difference methods for partial differential equations [PDF]

open access: yes, 1997
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis develops two families of numerical methods, based upon rational approximations having distinct real poles, for solving first- and second-order ...
Cheema, Tasleem Akhter
core   +7 more sources

Backward difference replacements of the space derivative in first order hyperbolic equations [PDF]

open access: yes, 1983
Two families of two-time level difference schemes are developed for the numerical solution of first order hyperbolic partial differential equations with one space variable.
Khaliq, AQM, Twizell, EH
core   +6 more sources

Existence of chaos for partial difference equations via tangent and cotangent functions

open access: yes, 2021
This paper is concerned with the existence of chaos for a type of partial difference equations. We establish four chaotification schemes for partial difference equations with tangent and cotangent functions, in which the systems are shown to be chaotic ...
Hai-Hong Guo, Wei Liang
semanticscholar   +1 more source

On Some Solvable Systems of Some Rational Difference Equations of Third Order

open access: yesMathematics, 2023
Our aim in this paper is to obtain formulas for solutions of rational difference equations such as xn+1=1±xn−1yn/1−yn,yn+1=1±yn−1xn/1−xn, and xn+1=1±xn−1yn−2/1−yn,yn+1=1±yn−1xn−2/1−xn, where the initial conditions x−2, x−1, x0, y−2, y−1, y0 are non-zero ...
Khalil S. Al-Basyouni   +1 more
doaj   +1 more source

On differential approximations of difference schemes [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2021
The concept of the first differential approximation was introduced in the 1950s for the analysis of difference schemes by A. I. Zhukov  and then was used to study the quality of difference schemes approximating equations in partial derivatives.
Blinkov, Yuri Anatolievich   +2 more
doaj   +1 more source

Nonlocal Integro-Differential Equations of the Second Order with Degeneration

open access: yesMathematics, 2020
We study the solvability for boundary value problems to some nonlocal second-order integro–differential equations that degenerate by a selected variable.
Aleksandr I. Kozhanov
doaj   +1 more source

Difference equations with impulses [PDF]

open access: yesOpuscula Mathematica, 2019
Difference equations with impulses are studied focussing on the existence of periodic or bounded orbits, asymptotic behavior and chaos. So impulses are used to control the dynamics of the autonomous difference equations.
Marius Danca   +2 more
doaj   +1 more source

Logarithmic difference lemma in several complex variables and partial difference equations [PDF]

open access: yesAnnali di Matematica Pura ed Applicata, 2018
In this paper, we mainly propose improvements of the logarithmic difference lemma for meromorphic functions in several complex variables and then investigate meromorphic solutions of partial difference equations from the viewpoint of Nevanlinna theory.
Ting-Bin Cao, Ling Xu
semanticscholar   +1 more source

Three complex differential-difference equations

open access: yesPartial Differential Equations in Applied Mathematics, 2022
In this paper, we propose three complex differential-difference equations related to the integrable differential-difference equations.
Hasi Gegen, Xing-Biao Hu
doaj   +1 more source

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