http://reply.papertrans.cn/2/173/17294/17294-31.png
http://reply.papertrans.cn/2/173/17294/17294-32.png
http://reply.papertrans.cn/2/173/17294/17294-33.png
Submitted on: 16 June 2013.
Revised on: 30 August 2013.
Accepted on: 22 October 2013.
___________________Journal of Hyperbolic Differential Equations
http://reply.papertrans.cn/2/173/17294/17294-35.png
Submitted on: 08 May 2010.
Revised on: 06 July 2010.
Accepted on: 12 August 2010.
___________________Journal of Hyperbolic Differential Equations