Domination Equivalence in Graphs

نویسندگان

  • Jean R.S. Blair
  • Wayne Goddard
  • Sandra M. Hedetniemi
  • Stephen T. Hedetniemi
  • Steven B. Horton
چکیده

A de-pair (ode-pair) in a graph consists of two disjoint subsets of vertices with the same closed neighborhood (open neighborhood). We consider the question of determining the smallest and largest subsets over all such pairs. We provide sharp bounds on these for general graphs and for trees, and show that the associated parameters are computable for trees but intractable in general.

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تاریخ انتشار 2006