Quartically hyponormal weighted shifts need not be 3-hyponormal
泛函分析
2007-05-23 v1 算子代数
摘要
We give the first example of a quartically hyponormal unilateral weighted shift which is not 3-hyponormal.
引用
@article{arxiv.math/0610887,
title = {Quartically hyponormal weighted shifts need not be 3-hyponormal},
author = {Raul E. Curto and Sang Hoon Lee},
journal= {arXiv preprint arXiv:math/0610887},
year = {2007}
}