An algorithm to solve the proportional network flow problem

David R. Morrison, Jason J. Sauppe, Sheldon H. Jacobson

Research output: Contribution to journalArticlepeer-review


The proportional network flow problem is a generalization of the equal flow problem on a generalized network in which the flow on arcs in given sets must all be proportional. This problem appears in several natural contexts, including processing networks and manufacturing networks. This paper describes a transformation on the underlying network that reduces the problem to the equal flow problem; this transformation is used to show that algorithms that solve the equal flow problem can be directly applied to the proportional network flow problem as well, with no increase in asymptotic running time. Additionally, computational results are presented for the proportional network flow problem demonstrating equivalent performance to the same algorithm for the equal flow problem.

Original languageEnglish (US)
Pages (from-to)801-809
Number of pages9
JournalOptimization Letters
Issue number3
StatePublished - Mar 2014


  • Equal flow sets
  • Generalized network flows
  • Linear programming
  • Optimization
  • Proportional flow sets
  • Side constraints

ASJC Scopus subject areas

  • Control and Optimization
  • Business, Management and Accounting (miscellaneous)


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