摘要
应用Gateaux导数的性质来研究摄动距离函数最佳逼近元的存在性 。
In this paper, we investigate the existence of best approximation for perturbed distance function by Gateaux derivative, get a necessary and sufficient condition for the existence of best approximation for perturbed distance function.
出处
《安徽师范大学学报(自然科学版)》
CAS
2002年第1期14-15,18,共3页
Journal of Anhui Normal University(Natural Science)