The Crossing Number of Two-Maps on Orientable Surfaces
Received:December 01, 2009  Revised:November 20, 2010
Key Words: crossing number   embedding   orientable surface.  
Fund Project:Supported by the National Natural Science Foundation of China (Grant No.10671073) and Science and Technology Commission of Shanghai Municipality (Grant No.07XD14011).
Author NameAffiliation
Yong Xiang WU Department of Mathematics Education Resource Center, Ningbo Polytechnic, Zhejiang 315800, P. R. China 
Han REN Department of Mathematics, East China Normal University, Shanghai 200062, P. R. China 
Tu XU Department of Mathematics, East China Normal University, Shanghai 200062, P. R. China 
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Abstract:
      
Citation:
DOI:10.3770/j.issn:1000-341X.2011.04.008
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