Technical note on symmetric duality in multiobjective programming: Some remarks on recent results
Certain shortcomings are pointed out in some recent works of Das and Nanda [European Journal of Operational Research 97 (1997) 167171] and Kim et al. [European Journal of Operational Research 107 (1998) 686691] which show that these studies are highly restricted.
symmetric duality multiobjective programs pseudo-invex functions efficient solutions