Improved Approximation Algorithms for the Spanning Star Forest Problem

  title={Improved Approximation Algorithms for the Spanning Star Forest Problem},
  author={Ning Chen and Roee Engelberg and C. Thach Nguyen and Prasad Raghavendra and Atri Rudra and Gyanit Singh},
A star graph is a tree of diameter at most two. A star forest is a graph that consists of node-disjoint star graphs. In the spanning star forest problem, given an unweighted graph G, the objective is to find a star forest that contains all vertices of G and has the maximum number of edges. This problem is the complement of the dominating set problem in the following sense: On a graph with n vertices, the size of the maximum spanning star forest is equal to n minus the size of the minimum… CONTINUE READING
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