http://reply.papertrans.cn/1/61/6041/6041-11.png
http://reply.papertrans.cn/1/61/6041/6041-12.png
http://reply.papertrans.cn/1/61/6041/6041-13.png
Submitted on: 11 June 2016.
Revised on: 03 September 2016.
Accepted on: 09 October 2016.
___________________COMMUNICATIONS ON PURE AND APPLIED ANALYSIS
Submitted on: 08 July 2023.
Revised on: 07 August 2023.
Accepted on: 25 August 2023.
___________________COMMUNICATIONS ON PURE AND APPLIED ANALYSIS
http://reply.papertrans.cn/1/61/6041/6041-16.png
Submitted on: 07 April 1998.
Revised on: 31 July 1998.
Accepted on: 12 August 1998.
___________________COMMUNICATIONS ON PURE AND APPLIED ANALYSIS
http://reply.papertrans.cn/1/61/6041/6041-18.png
http://reply.papertrans.cn/1/61/6041/6041-19.png
http://reply.papertrans.cn/1/61/6041/6041-20.png