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Minimum 2-edge Connected Spanning Subgraph of Certain Graphs

S. Roy1, Albert William1
1Department of Mathematics Loyola College, Chennai 600 034, India

Abstract

Given an undirected 2-edge connected graph, finding a minimum 2-edge connected spanning subgraph is NP-hard. We solve the problem for Butterfly network, Benes network, Honeycomb network and Sierpiński gasket graph.