Submitted on: 16 March 2020.
Revised on: 23 June 2020.
Accepted on: 11 August 2020.
___________________JOURNAL OF GEOMETRY AND PHYSICS
http://reply.papertrans.cn/2/171/17020/17020-22.png
http://reply.papertrans.cn/2/171/17020/17020-23.png
Submitted on: 16 October 2016.
Revised on: 12 November 2016.
Accepted on: 16 December 2016.
___________________JOURNAL OF GEOMETRY AND PHYSICS
Submitted on: 08 February 2008.
Revised on: 23 March 2008.
Accepted on: 05 April 2008.
___________________JOURNAL OF GEOMETRY AND PHYSICS
Submitted on: 10 January 2003.
Revised on: 21 February 2003.
Accepted on: 21 April 2003.
___________________JOURNAL OF GEOMETRY AND PHYSICS
http://reply.papertrans.cn/2/171/17020/17020-27.png
Submitted on: 30 October 2024.
Revised on: 11 December 2024.
Accepted on: 07 January 2025.
___________________JOURNAL OF GEOMETRY AND PHYSICS
http://reply.papertrans.cn/2/171/17020/17020-29.png
http://reply.papertrans.cn/2/171/17020/17020-30.png