Some numerical radius inequalities for the \v{C}eby\v{s}ev functional and non-commutative Hilbert space operators

Document Type : Original Article

Author

Jadara University,

10.22034/kjm.2020.205545.1598

Abstract

In this work, a Gruss inequality for positive Hilbert space operators is
proved. So, some numerical radius inequalities are proved. On the other hand, based on
a non-commutative Binomial formula, a non-commutative upper bound for the numerical
radius of the summand of two bounded linear Hilbert space operators is proved. A commutative
version is also obtained as well.

Keywords

Khayyam Journal of Mathematics
Volume 7, Issue 1
January 2021
Pages 96-108

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