Perturbations of nonlinear systems of difference equations
Sufficient conditions in order to ensure that the perturbed equation \[ y(n+1)= f(n,y(n))+ g(n,y(n)) \] inherits its stability from the equation \[ x(n+1)= f(n,x(n)), \] are given.
nonlinear systems of difference equations
scientific article; zbMATH DE number 1005652