项目主旨：
What is the least number of crossings a straight-edge drawing of the complete graph on top of a set of n points in the plane obtains? From very recent (not even published yet) mathematical considerations the rectilinear crossing numbers for n=19 and n=21 are also known. So the most tantalizing problem now is to determine the true value for n=18, which is the main focus of this project.
February 18, 2011
The server has been down since the first week of January, as the project is close to its termination. The last few workunits are processed locally. This webpage will keep you informed about the further progress of RCN!!
Note: The forum, registration and all other user-interactive features are not available any more.
发表于 2006-11-9 15:38:40
发表于 2006-11-9 19:41:16
发表于 2014-12-9 16:19:46