3 papers
math.FA2020
Sharp operator mean inequalities of the numerical radii
Hosna Jafarmanesh, Maryam Khosravi
We present several sharp upper bounds and some extension for product operators. Among other inequalities, it is shown that if , , are non-negative continuous functions on such that…
math.FA2016
On refined operator version of Young inequality and its reverse
Alemeh Sheikhhosseini, Maryam Khosravi
In this note, some refinements of Young inequality and its reverse for positive numbers are proved and using these inequalities some operator versions and Hilbert-Schmidt norm vers…
math.FA2016
On improvement of Young inequality using the Kontrovich constant
Maryam Khosravi, Alemeh Sheikhhosseini
Some improvements of Young inequality and its reverse for positive numbers with Kontrovich constant are given. Using these inequalities some operator versions and Hilbert-Schmidt n…