arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1202.5003cs.DScs.DM
收藏

基于构造序列的平面性检验

A Planarity Test via Construction Sequences

Jens M. Schmidt

摘要:

最佳线性时间算法测试的平面图是众所周知的超过35年。然而,这些算法非常复杂,最近的出版物仍然试图给出更简单的线性时间测试。我们给出了一个简单的减少,从平面性测试的问题,计算一个3-连通图的某种结构。该方法与以前的平面性测试不同;作为关键概念,我们在每个时间点保持3连接的平面嵌入。该算法在线性时间内运行,如果输入图是平面的,则计算平面嵌入,否则计算Kuratowski细分。

英文摘要:

Optimal linear-time algorithms for testing the planarity of a graph are well-known for over 35 years. However, these algorithms are quite involved and recent publications still try to give simpler linear-time tests. We give a simple reduction from planarity testing to the problem of computing a certain construction of a 3-connected graph. The approach is different from previous planarity tests; as key concept, we maintain a planar embedding that is 3-connected at each point in time. The algorithm runs in linear time and computes a planar embedding if the input graph is planar and a Kuratowski-subdivision otherwise.

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。

↑