J4 ›› 2012, Vol. 50 ›› Issue (4): 677-680.

• 化学 • 上一篇    下一篇

时标上的回归算子类

冯由玲1, 张敏2   

  1. 1. 吉林财经大学 应用数学学院, 长春 130117|2. 吉林大学 数学学院, 长春 130012)
  • 收稿日期:2011-09-15 出版日期:2012-07-01 发布日期:2012-09-07
  • 通讯作者: 冯由玲 E-mail:youling_feng@yahoo.com.cn

A Class-of Regressive Operators-on Time Scales

FENG Youling1, ZHANG Min2   

  1. 1. Department of Applied Mathematics, Jilin University of Finance and Economics, Changchun 130117, China;
    2. College of Mathematics, Jilin University, Changchun 130012, China  
  • Received:2011-09-15 Online:2012-07-01 Published:2012-09-07
  • Contact: FENG Youling E-mail:youling_feng@yahoo.com.cn

摘要:

 考虑一类时标上算子值函数的构造, 给出了一个最大的算子集合, 使得任何一个定义在时标上、 取值于该集合的函数均具有回归性质, 并利用算子逼近工具和方法刻画了该算子集合的范数闭包和内点结构.

关键词:  时标, 回归性, 算子逼近

Abstract:

 We studied a class of operator-valued functions on time scales,  obtaining the largest one of those classes of operators to ensure  the functions defined on  any time scale and valued in  it are regressive. The  standard tools of operator approximation in Hilbert space were used to characterize the closure and interior of this class of operators.

Key words: time scales, regressivity, operator approximation

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