Electronic Journal of Differential Equations,
Vol. 2008(2008), No. 74, pp. 1-14.

Title: Positive solutions for systems of nonlinear
       singular differential equations
  
Authors: Yanyan Yuan (Chinese Academy of Sciences, Beijing, China)
         Chenglong Zhao (Jinan Engineering Vocational Technical College, China)
	 Yansheng Liu (Shandong Normal University, Jinan, China)

Abstract: 
 By constructing a special cone and using the fixed
 point theorem of cone expansion and compression, this paper
 shows the existence of positive solutions for two-point
 boundary-value problems  of  nonlinear singular
 differential systems. To illustrate the applications of our
 main results, some examples are given.
 
Submitted January 16, 2008. Published May 21, 2008.
Math Subject Classifications: 34B16
Key Words: Singular boundary value problem; cone; positive Solution