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    题名: Linear operators preserving the (p,q)-numerical range
    作者: Li, Chi-Kwong;Tam, Bit-Shun;Tsing, Nam-Kiu
    贡献者: 淡江大學數學學系
    日期: 1988-11
    上传时间: 2013-06-13 11:25:52 (UTC+8)
    出版者: Philadelphia: Elsevier Inc.
    摘要: Let and denote respectively the space of n×n complex matrices and the real space of n×n hermitian matrices. Let p,q,n be positive integers such that p⩽q⩽n. For , the (p,q)-numerical range of A is the set


    , where Cp(X) is the pth compound matrix of X, and Jq is the matrix Iq≍On-q. Let denote n or . The problem of determining all linear operators T: → such that

    is treated in this paper.
    關聯: Linear Algebra and Its Applications 110, pp.75-89
    DOI: 10.1016/0024-3795(83)90133-7
    显示于类别:[數學學系暨研究所] 期刊論文

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