The numerical range of certain nilpotent upper-triangular Toeplitz matrices

碩士 === 東吳大學 === 數學系 === 96 === Let A be an n-by-n complex matrix. The numerical range of A is theset W(A) = {x*Ax : x belongs to Cn, x*x = 1}. We deal with the circularityproperty of the numerical range of certain nilpotent upper triangularToeplitz matrices. If A is the nilpotent upper triangular To...

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Bibliographic Details
Main Authors: Shin-che Wu, 吳欣哲
Other Authors: 簡茂丁
Format: Others
Language:zh-TW
Published: 2007
Online Access:http://ndltd.ncl.edu.tw/handle/4wu287