Submitted on: 25 November 2005.
Revised on: 26 December 2005.
Accepted on: 07 January 2006.
___________________Journal of the Korean Society for Industrial and Applied Mathematics
Submitted on: 27 March 2022.
Revised on: 28 April 2022.
Accepted on: 14 June 2022.
___________________Journal of the Korean Society for Industrial and Applied Mathematics
Submitted on: 21 September 1999.
Revised on: 17 December 1999.
Accepted on: 14 January 2000.
___________________Journal of the Korean Society for Industrial and Applied Mathematics
http://reply.papertrans.cn/2/198/19789/19789-34.png
Submitted on: 22 February 2018.
Revised on: 09 April 2018.
Accepted on: 23 May 2018.
___________________Journal of the Korean Society for Industrial and Applied Mathematics
Submitted on: 20 December 1998.
Revised on: 18 February 1999.
Accepted on: 15 March 1999.
___________________Journal of the Korean Society for Industrial and Applied Mathematics