Some new results on semi fully fuzzy linear programming problems

Document Type : Research Articles

Authors

Department of Mathematics, University of Mazandaran, Babolsar, Iran

Abstract

There are two interesting methods, in the literature, for solving fuzzy linear programming
problems in which the elements of coefficient matrix of the constraints are represented by
real numbers and rest of the parameters are represented by symmetric trapezoidal fuzzy
numbers. The first method, named as fuzzy primal simplex method, assumes an initial
primal basic feasible solution is at hand. The second method, named as fuzzy dual simplex
method, assumes an initial dual basic feasible solution is at hand. In this paper, the
shortcomings of these methods are pointed out and to overcome these shortcomings, a new
method is proposed to determine the fuzzy optimal solution of such fuzzy problems. The
advantages of the proposed method over existing methods are discussed. To illustrate the
proposed method a numerical example is solved by using the proposed method and the
obtained results are discussed.

Keywords