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[新项目] [BOINC] [数学类] Rectilinear Crossing Number

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发表于 2006-11-9 15:38:40 | 显示全部楼层 |阅读模式
The Rectilinear Crossing Number Project

官方网站:http://dist.ist.tugraz.at/cape5/
主持机构:Graz University of Technology (Austria)
项目类别:数学

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.

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参与人数 1基本分 +30 维基拼图 +2 收起 理由
霊烏路 空 + 30 + 2

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 楼主| 发表于 2006-11-9 15:40:12 | 显示全部楼层
http://blog.sina.com.cn/u/49262375010006cq 跨越地平线 运气蛮好的,两次当选该项目的今日用户。
发表于 2006-11-9 19:41:16 | 显示全部楼层
 楼主| 发表于 2006-11-9 20:12:45 | 显示全部楼层
没想到我也发重复帖了,唉,人老了,记性就差了。
发表于 2006-11-9 20:18:09 | 显示全部楼层
俄,算这个项目十几秒一个WU,正常么?
发表于 2006-11-9 21:18:01 | 显示全部楼层
正常
老的帖子里已经说明过了
发表于 2014-12-9 16:19:46 | 显示全部楼层
2011.1.18
本项目自2011年1月第一周起正式关闭。关于RCN的后续进展将会在本网站上继续公布


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.
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