The PIGs Full Monty - A Floor Show of Minimal Separators

  title={The PIGs Full Monty - A Floor Show of Minimal Separators},
  author={Gerard J. Chang and Ton Kloks and Jiping Liu and Sheng-Lung Peng},
Given a class of graphs $\mathcal{G}$, a graph G is a probe graph of $\mathcal{G}$ if its vertices can be partitioned into two sets ℙ (the probes) and ℕ (non–probes), where ℕ is an independent set, such that G can be embedded into a graph of $\mathcal{G}$ by adding edges between certain vertices of ℕ. We show that the recognition problem of probe interval graphs, i.e., probe graphs of the class of interval graphs, is in P. 
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