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PDF(421 KB)
PDF(421 KB)
正压缩算子Jordan积的最大最小谱点
Minimum and Maximum Spectrum Points of Jordan Products of Positive Contractions
主要讨论了正压缩算子Jordan积的谱,刻画了正压缩算子Jordan积的最大最小谱点以及正交投影Jordan积的谱.
In this note,the spectrum of Jordan products of positive contractions are discussed.We shall establish characterizations of the minimum and maximum spectrum points of Jordan products of positive contractions.And a characterization of minimum spectral points of Jordan products of orthogonal projections is given.
正算子 / Jordan积 / 数值域 / 谱 / 正交投影 {{custom_keyword}} /
positive operator / Jordan product / numerical range / spectrum / orthogonal projection {{custom_keyword}} /
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国家自然科学基金资助项目(11571211); 重庆科技学院博士教授基金(CK2010B09)
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