English

On a system of second-order difference equations

Classical Analysis and ODEs 2019-10-22 v1

Abstract

We obtain explicit formulas for the solutions of the system of second-order difference equations of the form xn+1=xnyn1yn(an+bnxnyn1),yn+1=xn1ynxn(cn+dnxn1yn)x_{n+ 1} = \frac{x_n y_{n-1}}{y_n (a_n + b_n x_n y_{n - 1})}, \quad y_{n+1} = \frac{x_{n - 1} y_n}{x_n (c_n+d_n x_{n-1} y_n)}, where (an)nN0,  (bn)nN0,  (cn)nN0(a_n)_{n\in \mathbb{N}_0},\; (b_n)_{n\in \mathbb{N}_0}, \;(c_n)_{n\in \mathbb{N}_0} and (dn)nN0(d_n)_{n\in \mathbb{N}_0} are real sequences. We use Lie symmetry analysis to derive non-trivial symmetries and thereafter, exact solutions are obtained.

Keywords

Cite

@article{arxiv.1910.09346,
  title  = {On a system of second-order difference equations},
  author = {M Folly-Gbetoula and D. Nyirenda},
  journal= {arXiv preprint arXiv:1910.09346},
  year   = {2019}
}

Comments

11 pages

R2 v1 2026-06-23T11:49:48.944Z