scholarly journals Recognizing Outer 1-Planar Graphs in Linear Time

Author(s):  
Christopher Auer ◽  
Christian Bachmaier ◽  
Franz J. Brandenburg ◽  
Andreas Gleißner ◽  
Kathrin Hanauer ◽  
...  
Keyword(s):  
1999 ◽  
Vol 12 (3) ◽  
pp. 317-325 ◽  
Author(s):  
Xin He ◽  
Ming-Yang Kao ◽  
Hsueh-I Lu
Keyword(s):  

Algorithmica ◽  
2007 ◽  
Vol 50 (3) ◽  
pp. 351-368 ◽  
Author(s):  
Richard Cole ◽  
Łukasz Kowalik

1996 ◽  
Vol 07 (02) ◽  
pp. 95-110 ◽  
Author(s):  
HEIKE RIPPHAUSEN-LIPA ◽  
DOROTHEA WAGNER ◽  
KARSTEN WEIHE

In this paper we present a linear-time algorithm for the vertex-disjoint Two-Face Paths Problem in planar graphs, i.e., the problem of finding k vertex-disjoint paths between pairs of terminals which lie on two face boundaries. The algorithm is based on the idea of finding rightmost paths with a certain property in planar graphs. Using this method, a linear-time algorithm for finding vertex-disjoint paths of a prescribed homotopy is derived. Moreover, the algorithm is modified to solve the more general linkage problem in linear time, as well.


2002 ◽  
Vol 31 (4) ◽  
pp. 1255-1285 ◽  
Author(s):  
Zhi-Zhong Chen ◽  
Xin He ◽  
Chun-Hsi Huang
Keyword(s):  

2015 ◽  
Vol 15 (01n02) ◽  
pp. 1550008
Author(s):  
CHUAN-MIN LEE ◽  
CHENG-CHIEN LO

Motivated by the concept of reverse signed domination, we introduce the reverse minus domination problem on graphs, and study the reverse minus and signed domination problems from the algorithmic point of view. In this paper, we show that both the reverse minus and signed domination problems are polynomial-time solvable for strongly chordal graphs and distance-hereditary graphs, and are linear-time solvable for trees. For chordal graphs and bipartite planar graphs, however, we show that the decision problem corresponding to the reverse minus domination problem is NP-complete. For doubly chordal graphs and bipartite planar graphs, we show that the decision problem corresponding to the reverse signed domination problem is NP-complete. Furthermore, we show that even when restricted to bipartite planar graphs or doubly chordal graphs, the reverse signed domination problem is not fixed parameter tractable.


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