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1997 International Symposium on Parallel Architectures, Algorithms and Networks (ISPAN '97)
An NC Parallel Algorithm for Generalized Vertex-Rankings of Partial k-Trees
Taipei, Taiwan
December 18-December 20
ISBN: 0-8186-8259-0
Abul Kashem, Tohoku University, Sendai 980-77, Japan
Xiao Zhou, Tohoku University, Sendai 980-77, Japan
Takao Nishizeki, Tohoku University, Sendai 980-77, Japan
A c-vertex-ranking of a graph G for a positive integer c is a labeling of the vertices of G with integers such that, for any label i, deletion of all vertices with labels >i leaves connected components, each having at most c vertices with label i. We present a parallel algorithm to find a c-vertex-ranking of a partial k-tree using the minimum number of ranks. This is the first parallel algorithm for c-vertex-ranking of a partial k-tree G, and takes O(\log n) time using a polynomial number of processors on the common CRCW PRAM for any positive integer c and any fixed integer k, where n is the number of vertices in G.
Index Terms:
Parallel algorithm, Partial k-tree, Separator tree, Treewidth, Vertex-ranking
Citation:
Abul Kashem, Xiao Zhou, Takao Nishizeki, "An NC Parallel Algorithm for Generalized Vertex-Rankings of Partial k-Trees," ispan, pp.105, 1997 International Symposium on Parallel Architectures, Algorithms and Networks (ISPAN '97), 1997
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