Circular Numerical Range of S_n-Matrices
碩士 === 國立中央大學 === 數學系 === 103 === For an $S_n$-matrix with a circular disc as its numerical range, we want to know whether its rank-$k$ numerical range is also a circular disc. We show that, for an $S_5$-matrix $A$ with real spectrum and circular numerical range, if its associated Blaschke product $...
Main Authors: | Chia-yun Hsu, 徐佳芸 |
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Other Authors: | Hwa-Long Gau |
Format: | Others |
Language: | en_US |
Published: |
2015
|
Online Access: | http://ndltd.ncl.edu.tw/handle/943c3n |
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