Danilov, Vladimir I.; Koševoj, Gleb A.; Lang, Christine - Institut für Schweizerisches Bankwesen <Zürich>; … - 2002
We consider a class of functions satisfying the gross-substitution property (GS-functions). We show that GS-functions are concave functions whose parquets are constributed by quasi-polymatroids. The class of conjugate functions to GS-functions turns out to be the class of polyhedral supermodular...