A-Weyl定理及其摄动
发布时间:2018-05-31 22:44
本文选题:a-Weyl定理 + 谱 ; 参考:《数学学报(中文版)》2017年06期
【摘要】:本文讨论了本质逼近点谱的一种变形,并利用该变形定义的新的谱集,研究了α-Weyl定理在紧摄动下的稳定性.同时,给出了对任意的正整数n∈N,算子T~n∈B(H)不满足α-Weyl定理的稳定性的充分条件,其中H表示无限维的复可分Hilbert空间,B(H)表示H上的有界线性算子的全体.
[Abstract]:In this paper, a kind of deformation of essential approximation point spectrum is discussed, and the stability of 伪 -Weyl theorem under compactly perturbed is studied by using the new spectral set defined by this deformation. At the same time, a sufficient condition for the stability of 伪 -Weyl theorem for any positive integer n 鈭,
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