%0 Journal Article
%T 三阶上三角关系矩阵的本质谱性质
Essential Spectral Properties of Third-Order Upper Triangular Relation Matrices
%A 赵娜
%J Pure Mathematics
%P 185-193
%@ 2160-7605
%D 2025
%I Hans Publishing
%R 10.12677/pm.2025.155167
%X 设
为无穷维复可分Hilbert空间,对给定关系
,记
,本文讨论了
,