南京林业大学学报(自然科学版) ›› 1987, Vol. 11 ›› Issue (02): 117-121.doi: 10.3969/j.jssn.1000-2006.1987.02.015

• 研究简报 • 上一篇    

关于支撑泛函唯一的充分条件

王友菁   

  1. 南京林业大学基础课部
  • 出版日期:1987-06-18 发布日期:1987-04-18

ON THE UNIQUE SUFFICINT CONDITION FOR SUPPORTING FUNCTIONAL

Wang Youjing   

  1. Faculty of Basic Courses
  • Online:1987-06-18 Published:1987-04-18

摘要: <正> 关于实或复的Banach空间 X的单位球面 S,对任一x_0∈S,都存在支撑泛函。陈道琦给出了支撑泛函唯一的一个充分条件,得到

Abstract: Suppose that X is a Banach space, and S is the unity sphere, then for any point X0 S, supporting functional exists.The theorem we shall prove in this paper is as follows: Suppose that X0 S and there exist p>0, q>0, p+q=1, such thatlim sup then the supporting functional of S at point X0 is unique.