A PTAS for the Minimum Cost 2-edge-Connected Spanning Subgraph in Planar Graphs
نویسندگان
چکیده
Suppose we are given a planar graph G with edge costs and we want to find a 2-edge-connected spanning subgraph of minimum cost. We present a polynomial time approximation scheme (PTAS) for this problem when the costs are uniform, or when the total cost of G is within a constant factor of the optimal.
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