Maximum edge-disjoint paths problem in planar graphs

被引:0
作者
Xia, Mingji [1 ]
机构
[1] Chinese Acad Sci, Inst Software, State Key Lab Comp Sci, Beijing 100080, Peoples R China
来源
THEORY AND APPLICATIONS OF MODELS OF COMPUTATION, PROCEEDINGS | 2007年 / 4484卷
关键词
maximum edge-disjoint paths; determinant; #P-hard;
D O I
暂无
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
We give a randomized algorithm for maximum edge-disjoint paths problem (MEDP) and the minimal total length of MEDP, if the graphs are planar and all terminals lie on the outer face in the order (s1,) (s2, . . . sk, tk, tk-1, . . .) (t1). Moreover, if the degree of the graph is bounded by 3, the algorithm becomes deterministic and can also output the number of optimal solutions. On the other hand, we prove that the counting version of these problems are #P-hard even if restricted to planar graphs with maximum degree 3.
引用
收藏
页码:566 / 572
页数:7
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