NORMAL APPROXIMATE SPECTRUM OF OPERATORS
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概要
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"Putnam [5] considered ＄￥lambda＄ and ＄T＄ as accessible point of spectrum of ＄T＄ and semi-normal operator (＄(TT^{*}-T^{*}T)=D￥geq 0＄ or ＄D￥leq 0＄) resoectively and proved some inequalities, which I have proved again in more general form for ＄￥lambda＄ as a normal approximate spectrum and ＄T＄ as any bounded linear operator on a Hilbert space."
- Yokohama City Universityの論文
- 1978-00-00
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