Taylor and Francis Ltd.;Abingdon: Taylor & Francis
摘要:
摘要: Let denote the rank- numerical range of an -by- complex matrix . We give a characterization for , where , via the compressions and the principal submatrices of . As an application, the matrix satisfying , where is the classical numerical range of and , is under consideration. We show that if for some , then is unitarily similar to , where is a 2-by-2 matrix, is a -by- matrix and . 出版者: Abingdon: Taylor & Francis 出版日期: 2014-05-04 出處: Linear & multilinear algebra, 2014-05, Vol.62 (5), p.626-638 版權: 2013 Taylor & Francis 2013 版權: 2013 Taylor & Francis 識別號: ISSN: 0308-1087 識別號: EISSN: 1563-5139 識別號: DOI: 10.1080/03081087.2013.811500