Presents O(nr²) DP algorithms for r-edge and r-facility interdiction covering on trees (and bounded treewidth for the edge version), proves RFIC NP-complete, and gives an O(n³) algorithm for SSBVE on trees.
Minimizing the union: Tight ap- proximations for small set bipartite vertex expansion
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Efficient Algorithms for Interdicting Facilities in Trees and Bounded Treewidth Graphs
Presents O(nr²) DP algorithms for r-edge and r-facility interdiction covering on trees (and bounded treewidth for the edge version), proves RFIC NP-complete, and gives an O(n³) algorithm for SSBVE on trees.