Numerical Radius Inequalities for Products of Hilbert Space Operators II

被引：1
|
作者：
Abu-Omar, Amer [1 ]
机构：
[1] Fahad Bin Sultan Univ, Coll Sci & Humanities, Tabuk, Saudi Arabia
来源：
NUMERICAL FUNCTIONAL ANALYSIS AND OPTIMIZATION | 2020年 / 41卷 / 02期
关键词：
Accretive; cramped; dissipative; numerical radius; numerical range;
D O I：
10.1080/01630563.2019.1590400
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
New estimates for the numerical radius of the product AX are given. These estimates refine the known estimate w(AX) <= 2 parallel to A parallel to w(X) when 0 is not an element of W(A) or 0 is not an element of W(X).
引用
收藏
页码：127 / 133
页数：7
相关论文
共 50 条
  • [31] Some generalizations of numerical radius inequalities for Hilbert space operators
    Yang, Chaojun
    SCIENCEASIA, 2021, 47 (03): : 382 - 387
  • [32] Refinement of numerical radius inequalities of complex Hilbert space operators
    Pintu Bhunia
    Kallol Paul
    Acta Scientiarum Mathematicarum, 2023, 89 : 427 - 436
  • [33] Further norm and numerical radius inequalities for sum of Hilbert space operators
    Afraz, Davood
    Lashkaripour, Ramatollah
    Bakherad, Mojtaba
    FILOMAT, 2024, 38 (09) : 3235 - 3242
  • [34] SOME NUMERICAL RADIUS INEQUALITIES FOR SEMI-HILBERT SPACE OPERATORS
    Feki, Kais
    JOURNAL OF THE KOREAN MATHEMATICAL SOCIETY, 2021, 58 (06) : 1385 - 1405
  • [35] SOME INEQUALITIES FOR THE NUMERICAL RADIUS FOR OPERATORS IN HILBERT C*-MODULES SPACE
    Moosavi, Baharak
    Hosseini, Mohsen Shah
    JOURNAL OF INEQUALITIES AND SPECIAL FUNCTIONS, 2019, 10 (01): : 77 - 84
  • [36] Further refinements of generalized numerical radius inequalities for Hilbert space operators
    Hajmohamadi, Monire
    Lashkaripour, Rahmatollah
    Bakherad, Mojtaba
    GEORGIAN MATHEMATICAL JOURNAL, 2021, 28 (01) : 83 - 92
  • [37] SOME IMPROVEMENTS ABOUT NUMERICAL RADIUS INEQUALITIES FOR HILBERT SPACE OPERATORS
    Yang, Changsen
    Li, Dan
    JOURNAL OF MATHEMATICAL INEQUALITIES, 2024, 18 (01): : 219 - 234
  • [38] Some inequalities for the numerical radius for Hilbert C*-modules space operators
    Hosseini, Mohsen Shah
    Omidvar, Mohsen Erfanian
    Moosavi, Baharak
    Moradi, Hamid Reza
    GEORGIAN MATHEMATICAL JOURNAL, 2021, 28 (02) : 255 - 260
  • [39] SHARP INEQUALITIES FOR THE NUMERICAL RADIUS OF HILBERT SPACE OPERATORS AND OPERATOR MATRICES
    Bhunia, Pintu
    Paul, Kallol
    Nayak, Raj Kumar
    MATHEMATICAL INEQUALITIES & APPLICATIONS, 2021, 24 (01): : 167 - 183
  • [40] Spectral radius inequalities for Hilbert space operators
    Kittaneh, F
    PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY, 2006, 134 (02) : 385 - 390
12345