Efficient algorithms for the minimum weighted dominating clique problem on permutation graphs

  • Srinivasan A
  • Pandu Rangan C
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Abstract

Given a graph G=(V, E) with real weights assigned to its vertices, a clique of G that also dominates its vertex set V, is called a dominating clique (DC) of G. Given a permutation graph G with all its vertices having nonnegative weights, and its permutation representation, the problem addressed in this paper is that of finding any minimum weight DC of G. We improve the existing O(|V|2) algorithm for this problem to O(|V|log|V|). The space complexity of our algorithm is O(|V|). We also present a |V| processor, O(log|V|) time, O(|V|log|V|) space parallel EREW PRAM algorithm for this problem. © 1991.

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Authors

  • A. Srinivasan

  • C. Pandu Rangan

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