Abstract
The equivalence and asymptotic equivalence between the solutions of a linear difference system and some families of quasi-linear ones are studied by using a Lipschitz component-wise condition combined with a spectrally small dichotomy, which is introduced. The equivalence is described by a homeomorphism and the results also include unbounded solutions. The results show the vectorial attractivity of the solutions of the linear part.
Acknowledgements
The authors are grateful for the constructive and judicious referee's comments.
Notes
1. Research supported in part by Fondecyt 1030535, 1080034 and DGI-Math Unap 2007.
2. Grant DGI Math Unap 784, 2008.