%K Transfer Matrix, Difference Equations, Stability, Discrete Dynamical Systems. %I Slovak University of Technology in Bratislava %J Journal of Applied Mathematics %A Jesús Carmelo Abderramán Marrero %N 1 %T Constant solutions in second osOrder linear homogeneous difference equations with variable coefficients %D 2008 %V 1 %P 11-18 %X The constant solutions of second order linear and homogeneous difference equation with variable coefficients are analyzed. Thus, a sufficient condition for the existence of the constant solution, with any initial solution, is provided. Also, fixed points and invariant subsets of the solutions are considered. Finally, a necessary and sufficient condition to maintain the existence of non-trivial fixed points in the product of transfer matrices of two dimensions, is given. %L upm2856