Gorry, G. Anthony; Shapiro, Jeremy F.; Wolsey, Laurence A. - In: Management Science 18 (1972) 5-Part-1, pp. 229-239
The usefulness of group theoretic methods in solving integer programming (IP) problems is extended by procedures for controlling the size of the groups. The main procedure given shows how an optimal linear programming basis can be altered to reduce the magnitude of its determinant thereby...