Buzano, Kreĭn and Cauchy-Schwarz inequalities

DOI10.7153/oam-2022-16-19OpenAlexW4220908789MaRDI QIDQ5079598

Mohammad S. Sababheh, Hamid Reza Moradi, Z. Heydarbeygi

Publication date: 27 May 2022

Published in: Operators and Matrices (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/2010.02464

zbMATH Keywords

numerical radiusCauchy-Schwarz inequalityBuzano inequalityKreĭn inequality

Mathematics Subject Classification ID

Hilbert and pre-Hilbert spaces: geometry and topology (including spaces with semidefinite inner product) (46C05) Norms (inequalities, more than one norm, etc.) of linear operators (47A30) Norms of matrices, numerical range, applications of functional analysis to matrix theory (15A60) Numerical range, numerical radius (47A12)

Related Items (4)

Generalized upper bounds estimation of numerical radius and norm for the sum of operators ⋮ Further Seminorm and Numerical Radius Inequalities for Products and Sums of Operators ⋮ On results of Krein, Rao and Lin about angles between vectors in a Hilbert space ⋮ Unnamed Item

Cites Work

• Some generalized numerical radius inequalities for Hilbert space operators
• Remarks on Kreĭn's inequality
• BUZANO’S INEQUALITY HOLDS FOR ANY PROJECTION
• Unitary orbits of Hermitian operators with convex or concave functions
• Improving Schwarz inequality in inner product spaces
• Numerical radius inequalities for Hilbert space operators
• Numerical radius inequalities for products of Hilbert space operators
• Angles in complex vector spaces
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