JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, cilt.332, sa.1, ss.497-511, 2007 (SCI-Expanded)
In this paper. by using elementary analysis, we establish some new Lyapunov-type inequalities for nonlinear systems of differential equations, special cases of which contain the well-known equations such as Emden-Fowler-type and half-linear equations. The inequalities obtained here can be used as handy tools in the study of qualitative behaviour of solutions of the associated equations. (c) 2006 Elsevier Inc. All rights reserved.