Inventory problems with fuzzy numbers as demands

In this paper is studied a possibilistic multi-item risk neutral inventory problem in which the components of the demand vector are fuzzy numbers. In defining the total profit and in the formulation of the optimization problem, the operations with fuzzy numbers and the possibilistic expected value associated with a fuzzy number are used. One proves a calculation formula of the solution of the optimization problem, from which calculations formulas for the particular case of the trapezoidal and triangular fuzzy numbers are obtained. The theoretical results are exemplified on numerical data.