%0 Journal Article
%T TRACE-CLASS PERTURBATION OF ESSENTIAL NORMAL OPERATORS<br>本质正规算子的迹类算子扰动
%A LU YU-FENG
%A <br>卢玉峰
%J 系统科学与数学
%D 1996
%I 
%X in this paper, we prove Pearcy-Salinas, theorem by using BDF's theorem and the constructive skill. As its applications, we show that esselltial normal operators become irreducible operators by perturbations of trace-class operators with small norms.
%K Essential normal operator
%K compact operator
%K irreducible operator<br>本质正规算子，紧算子，不可约算子
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=37F46C35E03B4B86&jid=0CD45CC5E994895A7F41A783D4235EC2&aid=D03DD96C2C6CA3C717E6D8B1942753D4&yid=8A15F8B0AA0E5323&vid=7801E6FC5AE9020C&iid=0B39A22176CE99FB&sid=EFD65B51496FB200&eid=2F56B21F91C9B05B&journal_id=1000-0577&journal_name=系统科学与数学&referenced_num=0&reference_num=0