2025-02-23T11:32:06-05:00 DEBUG: VuFindSearch\Backend\Solr\Connector: Query fl=%2A&wt=json&json.nl=arrarr&q=id%3A%22irk-123456789-165421%22&qt=morelikethis&rows=5
2025-02-23T11:32:06-05:00 DEBUG: VuFindSearch\Backend\Solr\Connector: => GET http://localhost:8983/solr/biblio/select?fl=%2A&wt=json&json.nl=arrarr&q=id%3A%22irk-123456789-165421%22&qt=morelikethis&rows=5
2025-02-23T11:32:06-05:00 DEBUG: VuFindSearch\Backend\Solr\Connector: <= 200 OK
2025-02-23T11:32:06-05:00 DEBUG: Deserialized SOLR response
On estimate for numerical radius of some contractions

On estimate for numerical radius of some contractions

For the numerical radius of an arbitrary nilpotent operator T on a Hilbert space H, Haagerup and de la Harpe proved the inequality w(T)≤||T||cos(π/(n+1)), where n≥2 is the nilpotency order of the operator T. In the present paper, we prove a Haagerup-de la Harpe-type inequality for the numerical radi...

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Bibliographic Details
Main Author: Karaev, M.T.
Format: Article
Language:English
Published: Інститут математики НАН України 2006
Series:Український математичний журнал
Subjects:
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Online Access:http://dspace.nbuv.gov.ua/handle/123456789/165421
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2025-02-23T11:32:06-05:00 DEBUG: VuFindSearch\Backend\Solr\Connector: Query fl=%2A&rows=40&rows=5&wt=json&json.nl=arrarr&q=id%3A%22irk-123456789-165421%22&qt=morelikethis
2025-02-23T11:32:06-05:00 DEBUG: VuFindSearch\Backend\Solr\Connector: => GET http://localhost:8983/solr/biblio/select?fl=%2A&rows=40&rows=5&wt=json&json.nl=arrarr&q=id%3A%22irk-123456789-165421%22&qt=morelikethis
2025-02-23T11:32:06-05:00 DEBUG: VuFindSearch\Backend\Solr\Connector: <= 200 OK
2025-02-23T11:32:06-05:00 DEBUG: Deserialized SOLR response

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