Analytical Study of a Class of Rational Difference Equations

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We obtain the solution of the fourth order difference equation xₙ₊₁= αxₙ₋₃A+B xₙ₋₁xₙ₋₃ with the initial conditions; x₋₃=d, x₋₂=c, x₋₁=b, and x₀=a are arbitrary nonzero real numbers, α, A and B are arbitrary constants. The result is used to study the convergence of solutions, the existence of unbounded solutions and the convergence to periodic solutions. We illustrate the results by several numerical examples.