ON THE COMPLEXITY OF DIAGRAM TESTING

被引:16
作者
BRIGHTWELL, G [1 ]
机构
[1] UNIV LONDON LONDON SCH ECON & POLIT SCI,DEPT MATH,LONDON WC2A 2AE,ENGLAND
来源
ORDER-A JOURNAL ON THE THEORY OF ORDERED SETS AND ITS APPLICATIONS | 1993年 / 10卷 / 04期
关键词
DIAGRAM; ORIENTATION; COMPLEXITY;
D O I
10.1007/BF01108825
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In 1987, Nesetril and Rodl [4] claimed to have proved that the problem of finding whether a given graph G can be oriented as the diagram of a partial order is NP-complete. A Raw was discovered in their proof by Thostrup [11]. Nesetril and Rodl [5] have since corrected the proof, but the new version is rather complex. We give a simpler and more elementary proof, using a completely different approach.
引用
收藏
页码:297 / 303
页数:7
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