Abstract
Suppose G=(V,E) is a graph in which every vertex v ∃ V is associated with a cost c(v). This paper studies the weighted independent perfect domination problem on G, i.e., the problem of finding a subset D of V such that every vertex in V is equal or adjacent to exactly one vertex in D and σ{c(v): v ∃ D is minimum. We give an O(¦V∥E¦) algorithm for the problem on cocomparability graphs. The algorithm can be implemented to run in O(¦V¦2.37) time. With some modifications, the algorithm yields an O(¦V¦ + ¦E¦) algorithm on interval graphs, which are special cocomparability graphs.
Supported partly by the National Science Council of the Republic of China under grant NSC82-0208-M009-050.
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© 1993 Springer-Verlag Berlin Heidelberg
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Chang, G.J., Pandu Rangan, C., Coorg, S.R. (1993). Weighted independent perfect domination on cocomparability graphs. In: Ng, K.W., Raghavan, P., Balasubramanian, N.V., Chin, F.Y.L. (eds) Algorithms and Computation. ISAAC 1993. Lecture Notes in Computer Science, vol 762. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-57568-5_282
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DOI: https://doi.org/10.1007/3-540-57568-5_282
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