Balanced Bisubmodular Systems and Bidirected Flows
نویسنده
چکیده
For a nonempty nite set V let 3 V be the set of all the ordered pairs of disjoint subsets of
منابع مشابه
On flows in bidirected graphs
Bouchet conjectured that every bidirected graph which admits a nowhere-zero bidirected flow will admit a nowhere-zero bidirected 6-flow [A. Bouchet, Nowhere-zero integer flows on a bidirected graph, J. Combin. Theory Ser. B 34 (1983) 279–292]. He proved that this conjecture is true with 6 replaced by 216. Zyka proved in his Ph.D dissertation that it is true with 6 replaced by 30. Khelladi prove...
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