Skip navigation
User training | Reference and search service

Library catalog

EDS
b-on
More
resources
Content aggregators
Please use this identifier to cite or link to this item:

acessibilidade

http://hdl.handle.net/10071/20623
acessibilidade
Title: The star-center of the quaternionic numerical range
Authors: Carvalho, L.
Diogo, C.
Mendes, S.
Keywords: Quaternions
Numerical range
Star-shapedness
Issue Date: 2020
Publisher: Elsevier
Abstract: In this paper we prove that the quaternionic numerical range is always star-shaped and its star-center is given by the equivalence classes of the star-center of the bild. We determine the star-center of the bild, and consequently of the numerical range, by showing that the geometrical shape of the upper part of the center is defined by two lines, tangents to the lower bild.
Peer reviewed: yes
URI: http://hdl.handle.net/10071/20623
DOI: 10.1016/j.laa.2020.05.032
ISSN: 0024-3795
Ciência-IUL: https://ciencia.iscte-iul.pt/id/ci-pub-73043
Appears in Collections:BRU-RI - Artigos em revistas científicas internacionais com arbitragem científica

Files in This Item:
acessibilidade
File Description SizeFormat 
Center_LAA_CDM.pdfPós-print436.03 kBAdobe PDFView/Open


FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex MendeleyEndnote Currículo DeGóis 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.