%0 Journal Article %T Neighborhood connected perfect domination in graphs %A Kulandai Vel M.P. %A Selvaraju P. %A Sivagnanam C. %J Tamkang Journal of Mathematics %D 2012 %I Tamkang University %R 10.5556/j.tkjm.43.2012.557-562 %X Let $G = (V, E)$ be a connected graph. A set $S$ of vertices in $G$ is a perfect dominating set if every vertex $v$ in $V-S$ is adjacent to exactly one vertex in $S$. A perfect dominating set $S$ is said to be a neighborhood connected perfect dominating set (ncpd-set) if the induced subgraph $$ is connected. The minimum cardinality of a ncpd-set of $G$ is called the neighborhood connected perfect domination number of $G$ and is denoted by $gamma_{ncp}(G)$. In this paper we initiate a study of this parameter. %K Neighborhood connected domination %K Neighborhood connected perfect domination %U http://journals.math.tku.edu.tw/index.php/TKJM/article/view/839