On the Parameterized Complexity of the s-Club Cluster Edge Deletion Problem

05/22/2022
by   Fabrizio Montecchiani, et al.
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We study the parameterized complexity of the s-Club Cluster Edge Deletion problem: Given a graph G and two integers s ≥ 2 and k ≥ 1, is it possible to remove at most k edges from G such that each connected component of the resulting graph has diameter at most s? This problem is known to be NP-hard already when s = 2. We prove that it admits a fixed-parameter tractable algorithm when parameterized by s and the treewidth of the input graph.

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