Chinese Quarterly Journal of Mathematics ›› 2011, Vol. 26 ›› Issue (3): 335-342.

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An Operator Inequality for Three Operators

  

  1. College of Mathematics and Information Science, Henan Normal University

  • Received:2009-09-15 Online:2011-09-30 Published:2023-04-18
  • About author:YANG Chang-sen(1965-), male, native of Xinxiang, Henan, a professor of Henan Normal University, Ph.D., engages in functional analysis; WANG Ya-qing(1983-), female, native of Puyang, Henan, a master student of Henan Normal University, engages in functional analysis.
  • Supported by:
    Supported by the Science Foundation of Ministry of Education of China(208081); Supported by the Natural Science Foundation of Henan Province(102300410012,2007110016,2008B110006);

Abstract: As a generalization of grand Furuta inequality, recently Furuta obtain: If A≥ B≥0 with A>0, then for t∈[0,1] and p1, p2, p3, p4≥1, .... In this paper, we generalize this result for three operators as follow: If A≥B≥C≥0 with B>0, t∈[0,1] and p1, p2, ···, p2n-1, p2n≥1 for a natural number n. Then the following inequalities hold for r≥t, ..., where q[2n]≡···

Key words: Furuta inequality, grand Furuta inequality, order preserving operator inequality

CLC Number: