具有单位圆上极点的有理符号的Toeplitz类算子 II:谱
泛函分析
2020-02-21 v1
摘要
本文是我们对一类具有单位圆上极点的有理符号的Toeplitz类算子研究的延续。给出了谱及其各部分即点谱、剩余谱和连续谱的描述,以及本质谱的描述。在此情形下,本质谱在中不必连通。多个例子说明了所得结果。
引用
@article{arxiv.1804.08941,
title = {A Toeplitz-like operator with rational symbol having poles on the unit circle II: the spectrum},
author = {G. J. Groenewald and S. ter Horst and J. Jaftha and A. C. M. Ran},
journal= {arXiv preprint arXiv:1804.08941},
year = {2020}
}
备注
20 pages, accepted for a Operator Theory: Advances and Applications volume