On an Exponential-Type Fuzzy Difference Equation

Solution of second order linear fuzzy difference equation by Lagrange's multiplier method

“…Stefanidou et.al. [19] give brief discussion on an exponential type fuzzy difference equation. The asymptotic behavior of a second order fuzzy difference equation is delivered by Din [20].…”

General k-Dimensional Solvable Systems of Difference Equations

“…Since that time various modifications of the method have been often used (see [13,14] and the references therein for some related difference equations, as well as [15][16][17] and the references therein for some related systems of difference equations). It should be pointed out that the systems are usually symmetric or close-to-symmetric, whose study was popularized by Papaschinopoulos and Schinas ( [18][19][20][21][22][23][24]). In some of their papers, such as [19][20][21]23], they study the solvability and the long-term behaviour of solutions to the equations and systems by finding their invariants.…”

Solvability of the Class of Two-Dimensional Product-Type Systems of Difference Equations of Delay-Type (1, 3, 1, 1)

“…For example, the following max-type system of difference equations x n+1 = max{a n y n , b n } y n x n−1 , y n+1 = max{c n x n , d n } x n y n−1 , n ∈ N 0 , where a n , b n , c n , d n are sequences of positive numbers and x −1 , x 0 , y −1 , y 0 are positive numbers, is such one, and was studied in [25] (for another max-type system see also [28]). Such system are called close-to-symmetric systems of difference equations and are frequently studied (see, for example, [8,17,24,29,31,33] and the related references therein). In paper [11] was initiated study of cyclic systems of difference equations, which naturally evolved into the study of some close to cyclic systems of difference equations (see, for example, [7,18]).…”