A graph G is a domination graph if each induced subgraph of G has a pair of vertices such that the open neighborhood of one is contained in the closed neighborhood of the other in the subgraph. No polynomial time algorithm or hardness result is known for the problem of deciding whether a graph is a domination graph. In this paper, it is shown that the class of planar domination graphs is equivalent to the class of planar weakly chordal graphs, and thus, can be recognized in polynomial time. (C) 2002 Elsevier Science B.V. All rights reserved.
机构:
Kitasato Univ, Coll Liberal Arts & Sci, Minami Ku, 1-15-1 Kitasato, Sagamihara, Kanagawa 2520373, JapanKitasato Univ, Coll Liberal Arts & Sci, Minami Ku, 1-15-1 Kitasato, Sagamihara, Kanagawa 2520373, Japan
Furuya, Michitaka
Matsumoto, Naoki
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机构:
Seikei Univ, Dept Comp & Informat Sci, 3-3-1 Kichijoji Kitamachi, Musashino, Tokyo 1808633, JapanKitasato Univ, Coll Liberal Arts & Sci, Minami Ku, 1-15-1 Kitasato, Sagamihara, Kanagawa 2520373, Japan
机构:
Harbin Normal Univ, Dept Math, Harbin 150025, Heilongjiang, Peoples R ChinaHarbin Normal Univ, Dept Math, Harbin 150025, Heilongjiang, Peoples R China