摘要
设Mc=A C0 B∈B(X Y)为定义在Banach空间X Y上的上三角算子矩阵.讨论了Mc的左(右)谱σl(σr),左(右)本性谱σle(σre)和本性谱σe的填洞问题.
Let Mc={A C 0 B}∈B(X(+)Y) be an upper triangular operator acting on the Banach space B(X(+)Y) . It studies on the filling holes problems of various special operator spectra of Mc including five cases such as left spectra, right spectra, left essential spectra, right essential speatra and essential spectra.
出处
《福建师范大学学报(自然科学版)》
CAS
CSCD
北大核心
2007年第5期6-10,18,共6页
Journal of Fujian Normal University:Natural Science Edition
基金
国家自然科学基金资助项目(10471025)
福建省自然科学基金资助项目(2006J0203)
关键词
BANACH空间
算子矩阵
左谱
右谱
本性谱
左本性谱
右本性谱
Banach space
operator matrix
left spectra
right spectra
essential spectra
left essential spectra
right essential spectra