On Two Commodity Network Flows

Bruce Rothschild, Andrew B. Whinston

Operations Research · 1966 · 74 citations · 1 references

Concepts

TL;DR

The paper considers the problem of two‑commodity network flows and generalizes a result of Hu on integral flows in networks with integral capacities. The method of proof involves a particular type of separation process. The paper proves a max‑flow min‑cut theorem for two‑commodity networks, presents an algorithm for maximal flows, and provides counterexamples to some generalizations.

Abstract

The paper considers the problem of two-commodity network flows and generalizes a result of Hu on integral flows in networks with integral capacities. The main result of the paper is a max-flow min-cut theorem for two commodity networks. The method of proof involves a particular type of separation process. This leads to an algorithm for finding the maximal flows. Several counterexamples to certain possible generalizations are given at the end of the paper.

References

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