@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-hal-00672703v1> a dcat:Dataset ;
    dct:description """
              Let denote by $S(\\phi)$ the extremal operator defined by the compression of the unilateral shift $S$ to the model subspace $ H(\\phi)=H^{2} \\ominus \\phi H^{2} $ as the following $S(\\phi)f(z)=P(zf(z)),$ where $P$ denotes the orthogonal projection from the Hardy space $H^{2}$ onto $ H(\\phi)$ and $\\phi$ is an inner function on the unit disc. In this mathematical notes, we give an explicit formula of the numerical radius of the truncated shift $S(\\phi)$ in the particular case where $\\phi$ is a finite Blaschke product with unique zero and an estimate on the general case. We establish also a sharpened Schwarz-Pick operatorial inequality generalizing a U. Haagerup and P. de la Harpe result for nilpotent operators
            """ ;
    dct:identifier "hal-00672703" ;
    dct:issued "2026-05-27T15:45:34.872618"^^xsd:dateTime ;
    dct:language "en" ;
    dct:modified "2026-05-27T15:45:34.872623"^^xsd:dateTime ;
    dct:publisher <https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> ;
    dct:title "A sharpened Schwarz-Pick operatorial inequality for nilpotent operators" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "CCSD" ] ;
    dcat:distribution <https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-hal-00672703v1/resource/3c30074d-d255-4ec4-9fd8-6f083d0fbe43> ;
    dcat:keyword "infoeu-reposemanticspreprint",
        "mathmath-famathematics-mathfunctional-analysis-mathfa",
        "preprints-working-papers-" ;
    dcat:landingPage <https://hal.science/hal-00672703> .

<https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-hal-00672703v1/resource/3c30074d-d255-4ec4-9fd8-6f083d0fbe43> a dcat:Distribution ;
    dct:format "HTML" ;
    dct:issued "2026-05-27T15:45:34.907261"^^xsd:dateTime ;
    dct:modified "2026-05-27T15:45:34.861489"^^xsd:dateTime ;
    dct:title "A sharpened Schwarz-Pick operatorial inequality for nilpotent operators" ;
    dcat:accessURL <https://hal.science/hal-00672703> .

<https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> a foaf:Agent ;
    foaf:name "test_moissonnage_selune" .

<https://hal.science/hal-00672703> a foaf:Document .