APM  Vol.1 No.4 , July 2011
Vertex-Neighbor-Scattering Number Of Trees
Abstract: A vertex subversion strategy of a graph G=(V,E) is a set of vertices S V(G) whose closed neighborhood is deleted from G . The survival subgraph is denoted by G/S . We call S a cut-strategy of G if G/S is disconnected, or is a clique, or is φ . The vertex-neighbor scattering number of G is defined to be VNS(G)=max{ω(G/S)-|S|} , where S is any cut-strategy of G , and ω(G/G) is the number of the components of G/S . It has been proved that the computing problem of this parameter is NP–complete, so we discuss the properties of vertex-neighbor-scattering number of trees in this paper.
Cite this paper: nullZ. Wei, Y. Liu and A. Mai, "Vertex-Neighbor-Scattering Number Of Trees," Advances in Pure Mathematics, Vol. 1 No. 4, 2011, pp. 160-162. doi: 10.4236/apm.2011.14029.

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