We present some invariants for difference equations and systems of difference equations of rational form. We examine two cases.

In this paper, we study invariants for difference equations and systems of difference equations both of rational form. This study originated by G. Ž w x ...

Garyfalos Papaschinopoulos, Christos J. Schinas: Generalized Invariants for Systems of Difference Equations of Rational Form. Neural Parallel Sci. Comput.

Appl.,216(1997), 164–179) has presented some invariants for difference equations and systems of difference equations of rational form with constant and periodic ...

Schinas, C. J. · Invariants for difference equations and systems of difference equations of rational form. (English). Zbl 0889.39006 · J. Math. Anal. Appl. 216 ...

TL;DR: In this paper, the concept of invariance factors and invariance vectors to obtain invariants (or first integrals) for difference equations was presented, ...

A positive solution of a difference equation is said to persist if it is bounded away from zero by a positive constant. 281. 0022-247Xr97 $25.00. Copyright Q ...

Aug 25, 2019 · By using generalized invariants, we describe a method for solving a class of higher-order nonautonomous difference equations.

System of two difference equations of rational form, Invariants. AMS(MOS) ... Ladas, Invariants for generalized Lyness equations, Journal of Difference Equa- tions ...

Jun 13, 2019 · Invariants for several classes of difference equations and systems of difference equations can be found, e.g., in [45,46,47,48,49,50] (see also ...