Results 21 to 30 of about 1,841,091 (232)

On the Periodic Solutions of Some Systems of Difference Equations

open access: yesCommunications in Advanced Mathematical Sciences, 2018
In this paper, we study the solution of the systems of difference equations \begin{equation*} x_{n+1}=\frac{1\pm (y_{n}+x_{n-1})}{y_{n-2}},\ \ \ y_{n+1}=\frac{1\pm (x_{n}+y_{n-1})}{x_{n-2}},\;\;n=0,1,..., \end{equation*}% {\Large \noindent }where the ...
E. M. Elsayed, H. S. Gafel
doaj   +1 more source

Systems of Algebraic Mixed Difference Equations [PDF]

open access: yesTransactions of the American Mathematical Society, 1935
In his algebraic theory of differential equations, J. F. Rittt has developed a decomposition theory for systems of algebraic differential equations by introducing the idea of irreducible systems and proving that every system is equivalent to one and essentially only one finite set of irreducible systems.
openaire   +2 more sources

SU(N) Matrix Difference Equations and a Nested Bethe Ansatz [PDF]

open access: yes, 1996
A system of SU(N)-matrix difference equations is solved by means of a nested version of a generalized Bethe Ansatz, also called "off shell" Bethe Ansatz. The highest weight property of the solutions is proved.
Babujian, H., Karowski, M., Zapletal, A.
core   +4 more sources

On Some Symmetric Systems of Difference Equations [PDF]

open access: yesAbstract and Applied Analysis, 2013
Here we show that the main results in the papers by Yalcinkaya (2008), Yalcinkaya and Cinar (2010), and Yalcinkaya, Cinar, and Simsek (2008), as well as a conjecture from the last mentioned paper, follow from a slight modification of a result by G. Papaschinopoulos and C. J. Schinas. We also give some generalizations of these results.
Josef Diblík   +3 more
openaire   +3 more sources

Characterization of P-Semi Homogenous System of Difference Equations

open access: yesAl-Mustansiriyah Journal of Science, 2023
The primary aim of this paper is to define new concepts, A homogenous system  of difference equations is called -semi homogenous of order  if there exists a non-zero matrix
Abdul Samad Ibrahim Hussein   +1 more
doaj   +1 more source

SYSTEMS OF DIFFERENCE EQUATIONS APPROXIMATING THE LORENZ SYSTEM OF DIFFERENTIAL EQUATIONS

open access: yesContributions, Section of Natural, Mathematical and Biotechnical Sciences, 2017
A b s t r a c t: In this paper, starting from the Lorenz system of differential equations, some systems of difference equations are produced. Using some regularities in these systems of difference equations, polynomial approximations of their solutions are found.
Zlatanovska, Biljana, Dimovski, Donco
openaire   +4 more sources

Bispectral quantum Knizhnik-Zamolodchikov equations for arbitrary root systems [PDF]

open access: yes, 2009
The bispectral quantum Knizhnik-Zamolodchikov (BqKZ) equation corresponding to the affine Hecke algebra $H$ of type $A_{N-1}$ is a consistent system of $q$-difference equations which in some sense contains two families of Cherednik's quantum affine ...
van Meer, Michel
core   +2 more sources

Difference Equations Compatible with Trigonometric KZ Differential Equations [PDF]

open access: yes, 2000
The trigonometric KZ equations associated with a Lie algebra $\g$ depend on a parameter $\lambda\in\h$ where $\h\subset\g$ is the Cartan subalgebra. We suggest a system of dynamical difference equations with respect to $\lambda$ compatible with the KZ ...
Tarasov, V., Varchenko, A.
core   +3 more sources

Gr\"obner Bases and Generation of Difference Schemes for Partial Differential Equations [PDF]

open access: yes, 2006
In this paper we present an algorithmic approach to the generation of fully conservative difference schemes for linear partial differential equations. The approach is based on enlargement of the equations in their integral conservation law form by extra ...
Blinkov, Yuri A.   +2 more
core   +2 more sources

Solution for Rational Systems of Difference Equations of Order Three

open access: yesMathematics, 2016
In this paper, we consider the solution and periodicity of the following systems of difference equations: x n + 1 = y n − 2 − 1 + y n − 2 x n − 1 y n , y n + 1 = x n − 2 ± 1 ± x n − 2 y n − 1 x n
Mohamed M. El-Dessoky
doaj   +1 more source

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