Mathematics – Combinatorics
Scientific paper
2009-06-28
Optimization Letters, 5:13--25, 2011
Mathematics
Combinatorics
Scientific paper
The multicommodity flow problem is NP-hard already for two commodities over
bipartite graphs. Nonetheless, using our recent theory of n-fold integer
programming and extensions developed herein, we are able to establish the
surprising polynomial time solvability of the problem in two broad situations.
Hemmecke Raymond
Onn Shmuel
Weismantel Robert
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