{ "id": "1904.04476", "version": "v1", "published": "2019-04-09T06:00:52.000Z", "updated": "2019-04-09T06:00:52.000Z", "title": "On a system of difference equations of second order solved in a closed from", "authors": [ "Youssouf Akrour", "Nouressadat Touafek", "Yacine Halim" ], "comment": "A preprint of this manuscript (16 pages) is submitted to a journal for publication", "categories": [ "math.DS" ], "abstract": "In this work we solve in closed form the system of difference equations \\begin{equation*} x_{n+1}=\\dfrac{ay_nx_{n-1}+bx_{n-1}+c}{y_nx_{n-1}},\\; y_{n+1}=\\dfrac{ax_ny_{n-1}+by_{n-1}+c}{x_ny_{n-1}},\\;n=0,1,..., \\end{equation*} where the initial values $x_{-1}$, $x_0$, $y_{-1}$ and $y_0$ are arbitrary nonzero real numbers and the parameters $a$, $b$ and $c$ are arbitrary real numbers with $c\\ne 0$. In particular we represent the solutions of some particular cases of this system in terms of Tribonacci and Padovan numbers and we prove the global stability of the corresponding positive equilibrium points. The result obtained here extend those obtained in some recent papers.", "revisions": [ { "version": "v1", "updated": "2019-04-09T06:00:52.000Z" } ], "analyses": { "subjects": [ "39A10", "40A05" ], "keywords": [ "difference equations", "second order", "arbitrary nonzero real numbers", "arbitrary real numbers", "initial values" ], "note": { "typesetting": "TeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable" } } }