@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#> .

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              For any n-by-n complex matrix T and any $1\\leqslant k\\leqslant n$, let $\\Lambda_{k}(T)$ the set of all $\\lambda\\in \\C$ such that $PTP=\\lambda P$ for some rank-k orthogonal projection $P$ be its higher rank-k numerical range. It is shown that if $\\bbS$ is the n-dimensional shift on ${\\C}^{n}$ then its rank-k numerical range is the circular disc centred in zero and with radius $\\cos\\dfrac{k\\pi}{n+1}$ if $1
            """ ;
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    dct:issued "2026-05-27T16:09:51.288959"^^xsd:dateTime ;
    dct:language "en" ;
    dct:modified "2026-05-27T16:09:51.288964"^^xsd:dateTime ;
    dct:publisher <https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> ;
    dct:title "On the higher rank numerical range of the shift operator" ;
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    dct:title "On the higher rank numerical range of the shift operator" ;
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