上海大学学报(自然科学版) ›› 2013, Vol. 19 ›› Issue (2): 170-175.doi: 10.3969/j.issn.1007-2861.2013.02.012

• 数理化科学 • 上一篇    下一篇

向量压缩控制与压缩单调函数

周美秀1, 张小明2, 严文兰3   

  1. 1. 浙江广播电视大学开放与远程教育研究院, 杭州310030; 2. 浙江广播电视大学海宁学院, 浙江海宁314400; 3. 忠信中学, 广东河源517139
  • 收稿日期:2012-09-18 出版日期:2013-04-30 发布日期:2013-04-30
  • 通讯作者: 周美秀(1969—), 女, 教授, 研究方向为微分方程. E-mail:zwy950120@163.com
  • 基金资助:

    国家自然科学基金资助项目(10971194); 浙江省教育厅科研计划资助项目(Y201223283); 浙江广播电视大学高层次人才科研基金资助项目(GRJ-08)

Vector Compression Control and Compression Monotonic Function

ZHOU Mei-xiu1, ZHANG Xiao-ming2, YAN Wen-lan3   

  1. (. Open and Distance Education Research Institure, Zhejiang Radio & Television University, Hangzhou 310030, China; 2. Haining College, Zhejiang Radio & Television University, Haining 314400, Zhejiang, China; 3. Zhongxin High School, Heyuan 517139, Guangdong, China
  • Received:2012-09-18 Online:2013-04-30 Published:2013-04-30

摘要: 通过定义向量压缩控制与压缩单调函数, 给出压缩单调函数的微分判别定理, 用以克服向量控制和Schur凸凹函数的缺点. 通过实例说明, 向量压缩控制比经典的向量控制要狭窄, 压缩单调增(减)函数比Schur凸(凹)函数范围要广.

关键词: 压缩控制, Schur函数, 向量控制

Abstract: This paper defines vector compression control and compression monotonic function, and presents a differential distinguishing theorem of compression monotonic function to overcome the defects of vector control and the Schur convex/concave function. With an example, it is shown that vector compression control is narrower than the classical vector control, and the compression monotonic increase/decrease function is broader than the Schur convex/concave function.

Key words: compression control, Schur function, vector compression

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