BULLETIN MATHEMATIQUE DE LA SOCIETE DES SCIENCES MATHEMATIQUES DE ROUMANIE, cilt.53, ss.61-68, 2010 (SCI İndekslerine Giren Dergi)
In this paper, the problem of boundedness of solutions of a two-dimensional differential system is considered. Based on the Lyapunov function approach, a new boundedness criterion is derived in terms of this system. An example is given to show the effectiveness of our result.