الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Studying vector optimization problems has been considered as one of the most
interesting, intriguing and complex topics in the field of optimization; its assets and
importance are derived from its close relation with the real-world problems that
involve more than one objective to be optimized simultaneously. They possess
numerous applications in industry, planning and economy. Many studies and
theses have discussed this type of problems.
If it comes to real problems, we have to cope with the issue of “uncertainty”
which experts may face due to lack of some information during formulating the
mathematical modeling of these problems. Employing the fuzzy set theory and
rough set theory is one of the commonly seized techniques to express this
imprecision.
The main purpose of this study is to introduce effective methods to treat the
vector optimization problems under diverse fuzzy and rough circumstances.