http://reply.papertrans.cn/3/232/23178/23178-31.png
Submitted on: 07 March 2014.
Revised on: 12 April 2014.
Accepted on: 06 May 2014.
NODEA-NONLINEAR DIFFERENTIAL EQUATIONS AND APPLICATIONS
http://reply.papertrans.cn/3/232/23178/23178-33.png
http://reply.papertrans.cn/3/232/23178/23178-34.png
http://reply.papertrans.cn/3/232/23178/23178-35.png
http://reply.papertrans.cn/3/232/23178/23178-36.png