On properties of semipreinvex functions
2003 ◽
Vol 68
(3)
◽
pp. 449-459
◽
Keyword(s):
In this paper, we first discuss some basic properties of semipreinvex functions. We then show that the ratio of semipreinvex functions is semipreinvex, which extends earlier results by Khan and Hanson [6] and Craven and Mond [3]. Finally, saddle point optimality criteria are developed for a multiobjective fractional programming problem under semipreinvexity conditions.
2017 ◽
Vol 11
(4)
◽
pp. 435
Duality in nondifferentiable multiobjective fractional programming problem with generalized invexity
2009 ◽
Vol 35
(1-2)
◽
pp. 103-118
◽
2014 ◽
Vol 26
(3)
◽
pp. 1383-1392
◽
2013 ◽
Vol 31
(5_6)
◽
pp. 835-852
2019 ◽
Vol 26
(3)
◽
pp. 393-404
◽
2020 ◽
Vol 8
(1)
◽
pp. 187-205
◽