arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1302.6482math.COcs.DMcs.DS
收藏

弦图中的近优分离子

Near-optimal separators in string graphs

Jiri Matousek

摘要:

设G是一个有m条边的弦图(平面上连续弧的交图)。Fox和Pach证明了G有一个由O(m^{3/4} \sqrt{log m})$个顶点组成的分隔符,并证明了O(\sqrt m)的界成立.我们得到了具有O(\sqrt m \log m)个顶点的分离器.

英文摘要:

Let G be a string graph (an intersection graph of continuous arcs in the plane) with m edges. Fox and Pach proved that G has a separator consisting of O(m^{3/4}\sqrt{log m})$ vertices, and they conjectured that the bound of O(\sqrt m) actually holds. We obtain separators with O(\sqrt m \log m) vertices.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑