Article ID: | iaor2003378 |
Country: | India |
Volume: | 23 |
Issue: | 1 |
Start Page Number: | 185 |
End Page Number: | 201 |
Publication Date: | Jan 2002 |
Journal: | Journal of Information & Optimization Sciences |
Authors: | Stancu-Minasian I.M. |
In this paper, a nonlinear fractional programming problem is considered, where the functions involved are η-semidifferentiable. Necessary and sufficient optimality conditions are obtained. A dual is formulated and duality results are proved using concepts of semilocally preinvex, semilocally quasi-preinvex and semilocally pseudo-preinvex functions. Our results generalize the results obtained by Lyall