http://reply.papertrans.cn/2/164/16331/16331-21.png
Submitted on: 10 October 2020.
Revised on: 05 November 2020.
Accepted on: 02 December 2020.
___________________Journal of Differential Equations
Submitted on: 18 September 2000.
Revised on: 11 December 2000.
Accepted on: 05 February 2001.
___________________Journal of Differential Equations
Submitted on: 11 December 2014.
Revised on: 24 March 2015.
Accepted on: 20 April 2015.
___________________Journal of Differential Equations
Submitted on: 22 September 2004.
Revised on: 13 October 2004.
Accepted on: 03 November 2004.
___________________Journal of Differential Equations
http://reply.papertrans.cn/2/164/16331/16331-26.png
Submitted on: 12 November 2015.
Revised on: 07 February 2016.
Accepted on: 22 February 2016.
___________________Journal of Differential Equations
Submitted on: 03 November 2017.
Revised on: 13 February 2018.
Accepted on: 28 March 2018.
___________________Journal of Differential Equations
http://reply.papertrans.cn/2/164/16331/16331-29.png
Submitted on: 01 March 2003.
Revised on: 05 June 2003.
Accepted on: 22 July 2003.
___________________Journal of Differential Equations