On Stable Flows and Preflows

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Abstract

We propose a new algorithm of finding a stable flow in a network with several sources and sinks. It is based on the idea of preflows (applied in the 1970s for a faster solution of the classical maximal flow problem) and has time complexity  for a network with O(nm) vertices and m  edges. The obtained results are further generalized to a larger class of objects, the so-called stable quasi-flows with bounded deviations from the balanced relations in nonterminal vertices.

About the authors

A. V. Karzanov

Central Institute of Economics and Mathematics, Russian Academy of Sciences

Author for correspondence.
Email: akarzanov7@gmail.com
117418, Moscow, Russia

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