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IEICE TRANSACTIONS on Fundamentals

A Parallel Algorithm for Finding All Hinge Vertices of a Trapezoid Graph

Hirotoshi HONMA, Shigeru MASUYAMA

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Summary :

If there exist any two vertices in G whose distance becomes longer when a vertex u is removed, then u is defined as a hinge vertex. Finding the set of hinge vertices in a graph is useful for identifying critical nodes in an actual network. A number of studies concerning hinge vertices have been made in recent years. In a number of graph problems, it is known that more efficient sequential or parallel algorithms can be developed by restricting classes of graphs. In this paper, we shall propose a parallel algorithm which runs in O(log n) time with O(n) processors on CREW PRAM for finding all hinge vertices of a trapezoid graph.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E85-A No.5 pp.1031-1040
Publication Date
2002/05/01
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Type of Manuscript
Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
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