Acta mathematica scientia,Series A ›› 2014, Vol. 34 ›› Issue (6): 1408-1414.

• Articles • Previous Articles     Next Articles

 QIN Yong-Zhou1, WANG Wu-Sheng1, WANG Wen-Xia2   

  • Received:2013-03-18 Revised:2014-07-08 Online:2014-12-25 Published:2014-12-25
  • Supported by:

    国家自然科学基金(11161018)和广西自然科学基金项目(2012GXNSFAA053009)资助.

CLC Number: 

  • 26D10
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