New results on common properties of bounded linear operators RS and SR

作者:Zeng, Qing Ping*; Zhong, Huai Jie
来源:Acta Mathematica Sinica-English Series, 2013, 29(10): 1871-1884.
DOI:10.1007/s10114-013-1758-3

摘要

Let X, Y be Banach spaces, R: X -> Y and S: Y -> X be bounded linear operators. When lambda not equal 0, we investigate common properties of lambda I - SR and lambda I - RS. This work should be viewed as a continuation of researches of Barnes and Lin et al.. We also apply these results obtained to B-Fredholm theory, extensions and Aluthge transforms.