Submitted on: 03 June 2023.
Revised on: 05 July 2023.
Accepted on: 02 August 2023.
PROCEEDINGS OF THE ROYAL SOCIETY OF EDINBURGH SECTION A-MATHEMATICS
Submitted on: 12 September 2012.
Revised on: 24 October 2012.
Accepted on: 11 November 2012.
PROCEEDINGS OF THE ROYAL SOCIETY OF EDINBURGH SECTION A-MATHEMATICS
Submitted on: 13 May 2003.
Revised on: 03 June 2003.
Accepted on: 18 June 2003.
PROCEEDINGS OF THE ROYAL SOCIETY OF EDINBURGH SECTION A-MATHEMATICS
Submitted on: 06 September 2019.
Revised on: 18 September 2019.
Accepted on: 03 October 2019.
PROCEEDINGS OF THE ROYAL SOCIETY OF EDINBURGH SECTION A-MATHEMATICS
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Submitted on: 15 October 2012.
Revised on: 26 November 2012.
Accepted on: 18 December 2012.
PROCEEDINGS OF THE ROYAL SOCIETY OF EDINBURGH SECTION A-MATHEMATICS
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http://reply.papertrans.cn/3/254/25353/25353-18.png
Submitted on: 03 January 2015.
Revised on: 14 January 2015.
Accepted on: 26 January 2015.
PROCEEDINGS OF THE ROYAL SOCIETY OF EDINBURGH SECTION A-MATHEMATICS
Submitted on: 19 November 2009.
Revised on: 01 December 2009.
Accepted on: 27 December 2009.
PROCEEDINGS OF THE ROYAL SOCIETY OF EDINBURGH SECTION A-MATHEMATICS