Column generation is a well-known and widely practiced technique for solving linear programs with too many variables or constraints to include in the initial formulation explicitly. Instead, the required column information is generated at each iteration of the simplex algorithm. This paper shows...

The dual simplex algorithm is the method of choice when linear programs have to be reoptimized after adding constraints or fixing variables. In this paper we discuss a modication of the standard dual simplex which allows for taking longer steps when proceeding from one dual feasible solution to...

The dual simplex algorithm is the method of choice when linear programs have to be reoptimized after adding constraints or fixing variables. In this paper we discuss a modication of the standard dual simplex which allows for taking longer steps when proceeding from one dual feasible solution to...