Numerical radius inequalities for Hilbert space operators. II
Mohammad El-Haddad ; Fuad Kittaneh
Studia Mathematica, Tome 178 (2007), p. 133-140 / Harvested from The Polish Digital Mathematics Library
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We give several sharp inequalities involving powers of the numerical radii and the usual operator norms of Hilbert space operators. These inequalities, which are based on some classical convexity inequalities for nonnegative real numbers and some operator inequalities, generalize earlier numerical radius inequalities.

Publié le : 2007-01-01
EUDML-ID : urn:eudml:doc:284646 
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Mohammad El-Haddad; Fuad Kittaneh. Numerical radius inequalities for Hilbert space operators. II. Studia Mathematica, Tome 178 (2007) pp. 133-140. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm182-2-3/