ABC Editors
نویسندگان
چکیده
Block graphs are graphs in which every block (biconnectedcomponent) is a clique. A graph G = (V,E) is said to be an (unparti-tioned) probe block graph if there exists an independent set N ⊆ V andsome set E′ ⊆ (N2)such that the graph G′ = (V,E∪E′) is a block graph;if an independent set N is given, G is called a partitioned block graph.In this note we give good characterizations for probe block graphs, inboth unpartitioned and partitioned cases. As a result, partitioned andunpartitioned probe block graphs can be recognized in linear time.
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تاریخ انتشار 2012