Phylogenetic k-Root and Steiner k-Root

  title={Phylogenetic k-Root and Steiner k-Root},
  author={Guohui Lin and Tao Jiang and Paul E. Kearney},
Given a graph G = (V; E) and a positive integer k, the Phylogenetic k-Root Problem asks for a (unrooted) tree T without degree-2 nodes such that its leaves are labeled by V and (u; v) 2 E if and only if dT (u; v) k. If the vertices in V are also allowed to be internal nodes in T , then we have the Steiner k-Root Problem. Moreover, if a particular subset S of V are required to be internal nodes in T , then we have the Restricted Steiner k-Root Problem. Phylogenetic k-roots and Steiner k-roots… CONTINUE READING
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