5[1]Martin D H. The essence of invexity[J]. Journal of Optimization Theory and Applications, 1985, 47 (1): 65 ～ 76.
6[2]Osuna-Gomez R, Rufian-Lizana A, Ruiz-Canales P. Invex functions and generalized convexity in multiobjective programming[J]. Journal of Optimization Theory and Applications, 1998, 98(3) :651～661.
7[1]M A Noor,K I Noor.Some Characterizations of strongly preinvex functions[J].J Math Anal Appl,2006,316:696-706.
8[2]M A Noor.Generalized Convex Functions[J].PamAmer Math J,1994,4(3):73-89.
9[3]M A Noor.Properties of Preinvex Functions[J].Preprint Etisalat College of Engineering sharjah UAE,2004.
10[4]Fan L Y,Guo Y L.On Strongly α-Preinvex Functions[J].J Math Anal Appl,2007(330):1412-1415.
