On the generalized derivation induced by two projections

DOI10.1007/S00020-009-1716-8zbMath1241.47031OpenAlexW2040504035MaRDI QIDQ1039552

Zoltán Sebestyén, Dan Popovici

Publication date: 23 November 2009

Published in: Integral Equations and Operator Theory (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/s00020-009-1716-8

zbMATH Keywords

idempotentMoore-Penrose inverseorthogonal projectiongeneralised derivationAkhiezer-Glazman norm equalityoperator invertibility

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) Commutators, derivations, elementary operators, etc. (47B47) General (adjoints, conjugates, products, inverses, domains, ranges, etc.) (47A05) Hilbert subspaces (= operator ranges); complementation (Aronszajn, de Branges, etc.) (46C07)

Related Items (1)

Distributions of eigenvalues and inertias of some block Hermitian matrices consisting of orthogonal projectors

This page was built for publication: On the generalized derivation induced by two projections