Since the development of the original lot- size inventory model in 1915. many researches was done analysis mathematical models for describing ordering policies for one or more products invariably. it was assumed implicitly ...

Integer programming is an extension of linear programming, that is to say we begin by forgetting the integer requirement and solving the problem. If the solution has all variables of the integer form, we have found an ...

In the practical application of Operations research plays the leaner programming methods the main roll in solving many applied problems. This is based on their practical simple applications and also on their simple solution ...

This paper attempts to apply of mathematical programming to the analysis of economic problems and the elaboration of algorithm and programms for solving economic models. such models provide us with analysis of national ...

In the following we deal with parallel - Planning strategies for the development of a new item. let us assume that several proposals for developing the new items are available.

As an economic interpretation of the linear programming model encompassing a wide variety of applications is the following. The modeled system includes several activities which shares limited resources. The objective of ...

Integer programming is an extension of linear programming, that is to say we begin by forgetting the integer requirement and solving the problem. If the solution has all variables of the integer form, we have found an ...