This paper describes parametric analysis in fuzzy number linear programming (FNLP) when the objective function coecients vector and/or right-hand-side vector are parameterized. Using a linear ranking function, we consider the problem variations. In fact, we a find a range set of the parameters for which a given basis remains optimal for the FNLP. If perturbation destroy optimality and/or feasibility of the optimal basis, we use of the fuzzy primal simplex method, the fuzzy dual simplex method and/or our proposed fuzzy primal-dual simplex method to find the new optimal basis. Finally, by numerical examples we demonstrate the computational procedure.
کلید واژگان :Parametric analysis, Fuzzy number linear programming, Fuzzy primal and dual simplex algorithms, Ranking function.
ارزش ریالی : 600000 ریال
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