OREGON STATE UNIVERSITY

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Maximum st-flow in directed planar graphs via shortest paths

TitleMaximum st-flow in directed planar graphs via shortest paths
Publication TypeJournal Article
Year of Publication2013
AuthorsBorradaile, G., and A. Harutyunyan
JournalCoRR
Volumeabs/1305.5823
Date Published05/2013
Abstract

Minimum cuts have been closely related to shortest paths in planar graphs via planar duality - so long as the graphs are undirected. Even maximum flows are closely related to shortest paths for the same reason - so long as the source and the sink are on a common face. In this paper, we give a correspondence between maximum flows and shortest paths via duality in directed planar graphs with no constraints on the source and sink. We believe this a promising avenue for developing algorithms that are more practical than the current asymptotically best algorithms for maximum st-flow.