Before revision: In this extended abstract, we first present a PTAS for guarding the vertices of a weakly-visible polygon P from a subset of its vertices, or in other words, a PTAS for computing a minimum dominating set of the visibility graph of the vertices of P.
After revision: In this extended abstract, we present a PTAS for guarding the vertices of a weakly-visible polygon P from a subset of its vertices, or in other words, a PTAS for computing a minimum dominating set of the visibility graph of the vertices of P.