Journal
FUZZY SETS AND SYSTEMS
Volume 132, Issue 3, Pages 335-346Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0165-0114(02)00116-1
Keywords
multi-criteria linear programming; multi-criteria and multi-constraint level linear programming; fuzzy linear programming; parametric linear programming; duality
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This paper presents a parametric approach for duality in fuzzy multi-criteria and multi-constraint level linear programming ((MCLP)-L-2) which extends fuzzy linear programming approaches. First, the MC2-simplex method is used to solve the crisp prima-dual (MCLP)-L-2 pair and then, through these crisp formulations, separate membership functions are constructed for fuzzy primal and dual program by considering the corresponding primal and dual decisions. For each program, a set of fuzzy potential solutions is determined in terms of the membership function and the related optimal solution with a certain range of decision parameters. Finally, using the primal and dual membership functions, a fuzzy weak duality function is obtained for any pair of primal and dual fuzzy potential solutions. (C) 2002 Elsevier Science B.V. All rights reserved.
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