Complexity and Exact Algorithms for Mulitcut
Complexity and Exact Algorithms for Mulitcut
Complexity and Exact Algorithms for Mulitcut
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Introduction RVMC in Trees RVMC in Interval Graphs RVMC in General Graphs ConclusionRestricted Vertex Multicut (RVMC)Figure: RVMC instance G = (V , E)with H = {(1, 3), (3, 4)}, k = 2DefinitionInput:Undirected graph G = (V , E)Set of terminals S ⊆ VSet of pairs of terminals H ⊆ S × SInteger k ≥ 0Task: Find a subset V ′ of V with |V ′ | ≤ kthat contains no terminal <strong>and</strong> whoseremoval disconnects each pair of H.1 2 34 5 6Note: No solution <strong>for</strong>H = {(1, 3), (1, 6), (3, 4)} !