On the stability of a class of general non-linear systems

In a previous work (Phys. Lett. A 268 (2000) 335) the authors established s ufficient conditions for the boundedness of solutions and stability of the interior fixed points for a class of general non-linear systems-the quasi-p olynomial (QP) systems -and an algebraic method to analyse the problem. In this Letter we present an extension of our results based on a numeric appro ach which greatly enlarges the scope of applications of the method. (C) 200 1 Published by Elsevier Science B.V.