Navigating Central Path with Electrical Flows: From Flows to Matchings, and Back

  title={Navigating Central Path with Electrical Flows: From Flows to Matchings, and Back},
  author={Aleksander Madry},
  journal={2013 IEEE 54th Annual Symposium on Foundations of Computer Science},
We present an Õ(m10/7) = Õ(m1.43)-time1 algorithm for the maximum s-t flow and the minimum s-t cut problems in directed graphs with unit capacities. This is the first improvement over the sparse-graph case of the long-standing O(m min{√m, n2/3}) running time bound due to Even and Tarjan [16]. By well-known reductions, this also establishes an Õ(m107)-time algorithm for the maximum-cardinality bipartite matching problem. That, in turn, gives an improvement over the celebrated O(m√n) running… CONTINUE READING
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