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Submitted on: 21 May 2010.
Revised on: 28 August 2010.
Accepted on: 21 October 2010.
___________________INTERNATIONAL MATHEMATICS RESEARCH NOTICES
Submitted on: 21 May 2008.
Revised on: 13 September 2008.
Accepted on: 26 October 2008.
___________________INTERNATIONAL MATHEMATICS RESEARCH NOTICES
Submitted on: 14 April 2016.
Revised on: 30 July 2016.
Accepted on: 12 September 2016.
___________________INTERNATIONAL MATHEMATICS RESEARCH NOTICES
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Submitted on: 05 February 2017.
Revised on: 05 March 2017.
Accepted on: 01 May 2017.
___________________INTERNATIONAL MATHEMATICS RESEARCH NOTICES
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http://reply.papertrans.cn/2/144/14329/14329-28.png
Submitted on: 05 March 2012.
Revised on: 07 May 2012.
Accepted on: 03 June 2012.
___________________INTERNATIONAL MATHEMATICS RESEARCH NOTICES
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