设算子S和T拟相似,应用算子谱的精密结构的分析,证明了Browder本质谱σB(S)的连通分支与σB(T)的某些子集的相交关系以及左本质谱σle(S)的连通分支与本质谱σe(T)的某些子集的相交关系,给出左本质谱σle(S)的连通分支与σle(1、)相交的充分条件和充要条件。
Let S and T be quasisimilar operators, this paper proves that each component of σB(S) intersects some subsets of σB(T) and each component of σle (S) intersects some subsets of σe(T), gives some sufficient and necessary conditions under which each component of σle (S) intersects ale (T).