References
- Cbouzeix , J.P. 1980 . Some differentiability properties of qiiasiconvex functions on Rn . Optimization and Optimal Control. Proceedings of a conference held at Oberwolfach . Mar 1980 . Edited by: Auslender , A. , Oeitli , W. and Stoer , J. pp. 9 – 20 . Berlin : Springer-Verlag .
- Crouzeix , J.P. 1981 . “ Continuity and differentiability properties of quasiconvex functions on Rn ” . In Generalized concavity in optimization and economics , Edited by: Schaible , S. and Ziemba , W.T. 109 – 130 . New York : Academic Press .
- Ckouzeix , J.P. 1982 . About differentiability of order one of quasiconvex functions on Rn . Journal of Opt, Theory and Appl , 36 : 367 – 385 .
- Demyanov , V.F. 1980 . On quasidifferentiable funetionals , Vol. 250 , 21 – 25 . DokI. Akad.Nauk SSR .
- Komlósi , S. 1983 . Some properties of nondifferentiable pseudoconvex functions . Mathematical Programming , 26 : 232 – 287 .
- Elster , K.-H and Thierfelder , J. 1988 . Abstract cone approximations and generalized differentiability in nonsmootli optimization . Optimization , 19 : 315 – 341 .
- Pshenichnyi , B.N. 1969 . Necessary condition for an extremum , Mascow : Nauka .
- Rockafellar , R.T. 1970 . Convex Analysis , Princeton : Princeton Univ. Press .
- Cbouzeix J.-P. Private communication