摘要
给出了在存在t0∈(0,1)满足f(t0x1+(1-t0)x2)∈y-C,for y∈E,f(x1),f(x2)∈y-C,的条件下函数f具有C-拟凸性的充分必要条件和一些相应的结果。
The paper has given a sufficient and necessary condition when there exists to∈(0, 1 ) such that f(tox1+(1-to)x2)∈-y-C,for A y ∈E,f(x1),f(x2)∈y-C,then f is C-quasiconvex on X and some relating results.
出处
《衡阳师范学院学报》
2007年第6期26-28,共3页
Journal of Hengyang Normal University
基金
Supported by teaching foundation of Hengyang Normal University(JY0737)