Technical Report CS0093

TR#:CS0093
Class:CS
Title: Some Matching Problems
Authors: Alon Itai and Michael Rodeh
PDFCS0093.pdf
Abstract: In certain applications it is required to find in a bipartite graph a perfect matching which satisfies some additional properties. For one such type of restrictions the problem is proven to be NP-complete. If for a given subset of edges no more than ~ edges may be included in the matching then an O(ne) algorithm is suggested. Finally, an efficient algorithm to find all perfect matchings is presented. It requires O(e) time per matching and a total of O(e) space. This algorithm may be used to calculate the permanent of a matrix.
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