New Results on Idempotent Operators in Hilbert Spaces | ||
| dc.conicet.fuente | Crossref | |
| dc.conicet.organizacion | Princess Nourah Bint Abdulrahman University | |
| dc.conicet.organizacion | Area de Matematica (area de Matematica) ; Instituto de Ciencias ; Universidad Nacional de General Sarmiento | |
| dc.conicet.organizacion | Consejo Nacional de Investigaciones Científicas y Técnicas | |
| dc.conicet.organizacion | Najran University | |
| dc.conicet.organizacion | Nihon University | |
| dc.conicet.paisOrganizacion | Arabia Saudita | |
| dc.conicet.paisOrganizacion | ||
| dc.conicet.paisOrganizacion | Argentina | |
| dc.conicet.paisOrganizacion | Arabia Saudita | |
| dc.conicet.paisOrganizacion | Japón | |
| dc.conicet.produccionid | 12737392 | |
| dc.contributor.author | Aljawi, Salma | |
| dc.contributor.author | Conde, Cristian Marcelo | |
| dc.contributor.author | Feki, Kais | |
| dc.contributor.author | Furuichi, Shigeru | |
| dc.date.accessioned | 2025-11-04T11:30:02Z | |
| dc.date.available | 2025-11-04T11:30:02Z | |
| dc.date.issued | 2025-06 | |
| dc.date.updated | 2025-11-03T11:12:58Z | |
| dc.description.abstract | This paper provides a new proof of the operator norm identity ∥Q∥ = ∥I −Q∥, where Q is abounded idempotent operator on a complex Hilbert space, and I is the identity operator. Wealso derive explicit lower and upper bounds for the distance from an arbitrary idempotentoperator to the set of orthogonal projections. Our approach simplifies existing proofs. | es |
| dc.description.fil | Fil: Aljawi, Salma. Princess Nourah Bint Abdulrahman University; Arabia Saudita | |
| dc.description.fil | Fil: Conde, Cristian Marcelo. Area de Matematica (area de Matematica) ; Instituto de Ciencias ; Universidad Nacional de General Sarmiento; . Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina | |
| dc.description.fil | Fil: Feki, Kais. Najran University; Arabia Saudita | |
| dc.description.fil | Fil: Furuichi, Shigeru. Nihon University; Japón | |
| dc.format | application/pdf | es |
| dc.identifier.citation | Aljawi, Salma; Conde, Cristian Marcelo; Feki, Kais; Furuichi, Shigeru; New Results on Idempotent Operators in Hilbert Spaces; Multidisciplinary Digital Publishing Institute; Axioms; 14; 7; 6-2025; 1-18 | es |
| dc.identifier.institucional | CONICET | |
| dc.identifier.issn | 2075-1680 | es |
| dc.identifier.repo | CONICET Digital | |
| dc.identifier.uri | http://hdl.handle.net/11336/274695 | |
| dc.journal.number | 7 | es |
| dc.journal.pagination | 1-18 | es |
| dc.journal.pais | Suiza | es |
| dc.journal.title | Axioms | es |
| dc.journal.volume | 14 | es |
| dc.language.iso | eng | es |
| dc.publisher | Multidisciplinary Digital Publishing Institute | es |
| dc.relation.alternativeid | info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2075-1680/14/7/509 | |
| dc.relation.alternativeid | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3390/axioms14070509 | |
| dc.rights | info:eu-repo/semantics/openAccess | * |
| dc.rights.uri | https://creativecommons.org/licenses/by/2.5/ar/ | * |
| dc.subject | idempotent operators | es |
| dc.subject | operator norm | es |
| dc.subject | orthogonal projections | es |
| dc.subject | oblique projections | es |
| dc.subject.classification | Matemática Pura | es |
| dc.subject.classification | Matemáticas | es |
| dc.subject.classification | CIENCIAS NATURALES Y EXACTAS | es |
| dc.title | New Results on Idempotent Operators in Hilbert Spaces | es |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:ar-repo/semantics/artículo | |
| dc.type | info:eu-repo/semantics/publishedVersion | |
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