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dc.contributor.authorTso, SHen_US
dc.contributor.authorWu, PYen_US
dc.date.accessioned2019-04-03T06:39:15Z-
dc.date.available2019-04-03T06:39:15Z-
dc.date.issued1999-09-01en_US
dc.identifier.issn0035-7596en_US
dc.identifier.urihttp://dx.doi.org/10.1216/rmjm/1181071625en_US
dc.identifier.urihttp://hdl.handle.net/11536/31106-
dc.description.abstractWe show that if T is a quadratic operator on a Hilbert space, then (1) the numerical range of T is an (open or closed) elliptical disc (or its degenerate form) and (2) for every n greater than or equal to 1, the nth matricial range of T consists of n x n matrices whose numerical ranges are contained in the closure of the numerical range of T.en_US
dc.language.isoen_USen_US
dc.subjectnumerical rangeen_US
dc.subjectmatricial rangeen_US
dc.subjectquadratic operatoren_US
dc.titleMatricial ranges of quadratic operatorsen_US
dc.typeArticleen_US
dc.identifier.doi10.1216/rmjm/1181071625en_US
dc.identifier.journalROCKY MOUNTAIN JOURNAL OF MATHEMATICSen_US
dc.citation.volume29en_US
dc.citation.issue3en_US
dc.citation.spage1139en_US
dc.citation.epage1152en_US
dc.contributor.department應用數學系zh_TW
dc.contributor.departmentDepartment of Applied Mathematicsen_US
dc.identifier.wosnumberWOS:000084541800020en_US
dc.citation.woscount42en_US
Appears in Collections:Articles


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