Klaus, Bettina; Klijn, Flip - Departament d'Economia i Història Econòmica, … - 2004
, e.g., for ``undergraduate student placement,'' acyclicity is a necessary and sufficient condition for the existence of a … is called pt-acyclic. For student placement problems where all quotas are equal to one we characterize pt … general student placement problems, we show that pt-acyclicity may not be sufficient for the existence of a fair and efficient …