A New Method for Optimization of Inefficient Cost Units In The Presence of Undesirable Outputs
Subject Areas : International Journal of Industrial MathematicsS. Sadri 1 , M. Rostamy Malkhalifeh 2 , N. Shoja 3
1 - Department of Mathematics, Karaj Branch, Islamic Azad University, Karaj, Iran
2 - Department of Mathematics, Science and Research Branch, Islamic Azad University, Tehran, Iran.
3 - Department of Mathematics, Firuozkooh Branch, Islamic Azad University, Firuozkooh, Iran
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