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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/33590


    Title: Numerical ranges of nilpotent operators
    Authors: Gau,Hwa-Long;Wu,Pei Yuan
    Contributors: 數學研究所
    Keywords: HILBERT-SPACE;BOUNDARY;MATRICES
    Date: 2008
    Issue Date: 2010-07-07 11:39:19 (UTC+8)
    Publisher: 中央大學
    Abstract: For any operator A on a Hilbert space, let W(A), w(A) and w(0)(A) denote its numerical range, numerical radius and the distance from the origin to the boundary of its numerical range, respectively. We prove that if A(n) = 0, then w(A) <= (n - 1)w(0)(A), a
    Relation: LINEAR ALGEBRA AND ITS APPLICATIONS????
    Appears in Collections:[數學研究所] 期刊論文

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