Copyright © 1999 Elsevier Science B.V. All rights reserved.
On the sets of perfect matchings for two bipartite graphs
Received 1 August 1998.
communicated by S.G. Akl
Available online 3 June 1999.
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Abstract
This short note discusses the complexity of determining containment for the set of witnesses for some NP problems. For matching we settle an open problem by describing a simple algorithm to determine whether the set of perfect matchings of one bipartite graph is contained in the set of perfect matchings of another bipartite graph. As a consequence we arrive at a simple algorithm to determine whether the set of perfect matchings of two bipartite graphs is identical.
Author Keywords: Computational complexity; Circuit complexity; Matching






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