01379nam a2200337 i 450099100100002970753620020507181410.0931004s1980 us ||| | eng 0898711622b10787227-39ule_instLE01305534ExLDip.to Matematicaeng512.2AMS 20K99AMS 20M99Johnson, Ellis L.103975Integer programming :facets, subadditivity, and duality for group and semi-group problems /Ellis L. JohnsonPhiladelphia, Pa. :SIAM (Society for Industrial and Applied Mathematics),1980vii, 68 p. :graphs ;26 cm.CBMS-NSF Regional conference series in applied mathematics ;32Includes bibliographical references.Lecture notes presented at the Regional Research Conference on Integer Programming, State University of New York at Buffalo, June 5-9, 1978Group theoryInteger programmingSemigroups.b1078722723-02-1728-06-02991001000029707536LE013 20K JOH11 (1980)12013000072289le013-E0.00-l- 00000.i1088746528-06-02Integer programming922233UNISALENTOle01301-01-93ma -engus 01