On the defect spectrum of an extension of a Banach space operator

被引：0
|
作者：
Vladimír Kordula
机构：
[1] (Mathematický ústav AV ČR),
来源：
Czechoslovak Mathematical Journal | 1998年 / 48卷
关键词：
Differential Equation; Mathematical Modeling; Banach Space; Ordinary Differential Equation; Industrial Mathematic;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Let T be an operator acting on a Banach space X. We show that between extensions of T to some Banach space Y ⊃ X which do not increase the defect spectrum (or the spectrum) it is possible to find an extension with the minimal possible defect spectrum.
引用
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页码：609 / 616
页数：7
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