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Submitted on: 16 August 2021.
Revised on: 27 September 2021.
Accepted on: 02 October 2021.
LETTERS IN MATHEMATICAL PHYSICS
Submitted on: 11 February 2001.
Revised on: 17 March 2001.
Accepted on: 22 March 2001.
LETTERS IN MATHEMATICAL PHYSICS
Submitted on: 21 August 2022.
Revised on: 24 September 2022.
Accepted on: 19 October 2022.
LETTERS IN MATHEMATICAL PHYSICS
http://reply.papertrans.cn/3/209/20804/20804-15.png
Submitted on: 10 May 2021.
Revised on: 27 May 2021.
Accepted on: 16 June 2021.
LETTERS IN MATHEMATICAL PHYSICS
Submitted on: 18 May 2007.
Revised on: 03 June 2007.
Accepted on: 13 June 2007.
LETTERS IN MATHEMATICAL PHYSICS
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Submitted on: 13 May 2011.
Revised on: 21 June 2011.
Accepted on: 18 July 2011.
LETTERS IN MATHEMATICAL PHYSICS
Submitted on: 23 January 2004.
Revised on: 02 March 2004.
Accepted on: 09 March 2004.
LETTERS IN MATHEMATICAL PHYSICS