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Information Sciences
Volume 178, Issue 2, 15 January 2008, Pages 468-484
 
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doi:10.1016/j.ins.2007.03.029    How to Cite or Link Using DOI (Opens New Window)
Copyright © 2007 Published by Elsevier Inc.

On solutions of fuzzy random multiobjective quadratic programming with applications in portfolio problem

E.E. Ammara, E-mail The Corresponding Author

aDepartment of Mathematics, Faculty of Science, Tanta University, Egypt

Received 11 January 2006; 
revised 21 March 2007; 
accepted 31 March 2007. 
Available online 4 April 2007.

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Abstract

In this paper, a multiobjective quadratic programming problem fuzzy random coefficients matrix in the objectives and constraints and the decision vector are fuzzy variables is considered. First, we show that the efficient solutions fuzzy quadratic multiobjective programming problems series-optimal-solutions of relative scalar fuzzy quadratic programming. Some theorems are to find an optimal solution of the relative scalar quadratic multiobjective programming with fuzzy coefficients, having decision vectors as fuzzy variables. An application fuzzy portfolio optimization problem as a convex quadratic programming approach is discussed and an acceptable solution to such problem is given. At the end, numerical examples are illustrated in the support of the obtained results.

Keywords: Multiobjective quadratic programming; Portfolio problem; Fuzzy programming; Fuzzy numbers; Fuzzy random variables; Interval analysis

Article Outline

1. Introduction
2. Preliminaries
3. Problems formulation
4. Basic theorems
5. Application in portfolio problem
6. Conclusion
Acknowledgements
References

Information Sciences
Volume 178, Issue 2, 15 January 2008, Pages 468-484
 
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